当前位置:首页 > 八年级 > 数学试卷

【329354】《可化为一元一次方程的分式方程》综合练习2

时间:2025-01-21 12:58:12 作者: 字数:7045字
简介:

3.7 可化为一元一次方程的分式方程

一、选择题

1)下列式子中,是分式方程的是( )

A <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> B <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>

C <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>D <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>

2)满足等式 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的值是( )

A1 B2 C0 D)不存在

3)关于 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的方程 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的根为 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 应取( )

A1 B3 C <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> D <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>

4)已知 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ,用 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的代数式表示 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 应是( )

A <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> B <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>

C <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> D <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>

5)不解方程,判断方程 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的解是( )

A0 B1 C2 D3

6)分式方程 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的解是( )

A0 B1 C <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> D)不存在

7)一水池装有两个进水管,单独开甲管需 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时注满水池,单独开乙管需 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时注满水池。若同时打开两管,那么注满水池时间是( )

A <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> B <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> C <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> D <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>

8)某食堂有煤 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 吨,原计划每天烧煤 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 吨,现在每天节约煤 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 吨,则可比原计划多烧( )天

A <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> B <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> C <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> D <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>

9)将含盐 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的盐水100克,欲制成含盐 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的盐水时,需加盐( )克

A <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> B <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> C <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> D <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>

10)甲跑的速度是一个常数,乙跑的速度是甲速度的 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 倍( <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ),甲在乙前的 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 米处,两人沿同一方向同时起跑,则乙追及甲所需跑( )米

A <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> B <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> C <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>D <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>


二、填空题

1)方程 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的根是_____________

2)若 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> =___________

3)若关于 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的方程 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的根为1,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> =__________

4)方程 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> =__________

5)已知 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> =_________

6)当 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> =________时,分式 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的值为3.

7)关于 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的方程 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 的解为_________

8)若方程 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 有增根,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> =________

9)公路全长 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 千米,某人步行 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时可到达,为了提前半小时到达,步行每小时应多走_________千米.

10)一辆载货汽车,先以一定的速度行160千米,后来把速度加快5千米,又行了180千米,结果行驶这两段路程所用的时间相同.设汽车加速前速度为 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 千米/时,则可列方程为__________


三、解答题

1.解方程

1 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>


  1.  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>


  1.  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>


  1.  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>


2.解方程

1 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>



  1.  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>  <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>




3. 列方程解应用题

1)一个两位数,个位上的数比十位上的数大4,用个位上的数去除这个两位数商是3,求这个两位数.



  1. 大小两部抽水机给一块地浇水,两部合浇2小时后,由小抽水机继续工作1小时完成.已知小抽水机独浇这块地所需时间等于大抽水机独浇这块地所需时间的 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 倍,求单独浇这块地各需多少时间?


  1. 打字员甲的工作效率比乙高 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ,甲打2000字所用时间比乙打1800字的时间少5分钟,求甲乙二人每分钟各打多少字?


  1. 一船自甲地顺流航行至乙地,用 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时,再由乙地返航至距甲地尚差2千米处,已用了3小时,若水流速度每小时2千米,求船在静水中的速度.


  1. 假日工人到离厂25千米的浏览区去旅游;一部分人骑自行车,出发1小时20分钟后,其余的人乘汽车出发,结果两部分人同时到达,已知汽车速度是自行车的3倍,求汽车和自行车速度.


  1. 有三堆数量相同的煤,用小卡车独运一堆的天数是大卡车独运一堆天数的一半的3.第三堆大小卡车同时运6天,运了这堆煤的一半,求大小卡车单独运一堆煤各要多少天?


  1. 有一工程需在规定日期内完成,如果甲单独工作,刚好能够按期完成;如果乙单独工作,就要超过规定日期3.现在甲、乙合作2天后,余下的工程由乙单独完成,刚好在规定日期完成,求规定日期是几天?


  1. 甲、乙两人同时从 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 两地相向而行,如果都走1小时,两人之间的距离等于 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 两地距离的 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ;如果甲走 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时,乙走半小时,这样两人之间的距离等于 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 间全程的一半,求甲、乙两人各需多少时间走完全程?



  1. 总价9元的甲种糖果和总价是9元的乙种糖果混合,混合后所得的糖果每千克比甲种糖果便宜1元,比乙种糖果贵 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 元,求甲、乙两种糖果每千克各多少元?


  1. 一个蓄水池装有甲、乙、丙三个进水管,甲、乙两管齐放1小时可注满水池的 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ;乙、丙两管齐放1小时可注满水池的 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ;丙、甲两管齐放1小时12分可注满全池.如果单独开放三个水管各需几小时注满水池?


  1. 某质检部门抽取甲、乙两厂相同数量的产品进行质量检测,测得甲厂有合格产品48件,乙厂合格产品45件,甲厂的合格率比乙厂的合格率高 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ,求甲厂的合格率是?




  1. 为了方便广大游客到昆明参观游览,铁道部门临时增开了一列南宁——昆明的直达快车,已知南宁、昆明两站的路程为828千米,一列普通快车与一列直达快车都由南宁开往昆明,直达快车的平均速度是普通快车平均速度是 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 倍,直达快车比普通快车后出发2小时,而先于普通快车4小时到达昆明,分别求出两车的速度.



  1. 汽车比步行每小时快24千米,自行车比步行每小时快12千米,某人从 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 地先步行4千米,然后乘汽车16千米到达 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 地,又骑自行车返回 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 地,往返所用时间相同,求此人步行速度.



  1. 甲、乙两人合打一份稿件,4小时后甲因另有任务,由乙再打6小时完成,已知甲打4小时的稿件乙需打8小时,求甲、乙单独打完这份稿件各需多少小时?







参考答案

一、选择题

1C2C3D4A5A6B7D8D9C10C

二、填空题

152 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>3 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>4 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>5 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>6 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>7 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>8399 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>10 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>

三、解答题

1.(1 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>213 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>44

2.(1122

3.(115[提示:设十位数为 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ,个位数为 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

2)大抽水机需4小时,小抽水机需6小时[提示:设大抽水机 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时浇完,

 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

3)甲50/分,乙40/[提示:设乙每分钟打 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 字,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

418千米/[提示:设静水速度 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 千米/时,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

5)自行车速 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 千米/时,汽车速 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 千米/时,[提示:设自行车速 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 千米/时,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

6)大车14天,小车84[提示:设大车独运一堆 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 天,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

76[提示:设规定日期 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 天,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

8)甲 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时,乙2小时,[提示:设甲需 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时,乙需 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

9)甲每千克3元,乙每千克 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a>[提示:设混合糖 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 元一斤,

 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

10)甲需3小时,乙需6小时,丙需2小时[提示:设甲乙丙分别需 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

11 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> [提示;设甲厂合格率 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 千米/时,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

12)慢车46千米/时,快车69千米/时,[提示:设慢车速 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 千米/时,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

138千米/[提示:设步行速度 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 千米/时,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]

14)甲9小时,乙18小时[提示:设甲需 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> 小时,则 <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/279/" title="综合" class="c1" target="_blank">综合</a> <a href="/tags/380/" title="方程" class="c1" target="_blank">方程</a> <a href="/tags/846/" title="分式" class="c1" target="_blank">分式</a> ]