22（本题满分12分）、解：设甲型车有x台，乙型车有y台DDDDDDD1分
DDDDDDDDDDD4分
答：甲型车有50台，乙型车有50台。 DDDDDDDDDDDDDDDD6分
（2）设增派m辆乙型车
DDDDDDDDDDDDDDDDDDDDD9分
DDDDDDDDDDDDDDDD11分
∵m取最小整数
答：最少增派17台乙型车。 DDDDDDDDD－12分
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如图，已知a∥b，∠
1=45°，则∠ 2= 　　　　　.
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站长：朱建新11.市政府计划建设一项水利工程,工程需要运送的土石方总量为10 的6次方立方米,莫运输公司承包了这项工程运送土石方的任务,有100两卡车一天运送10 的4次方立方米.完成需要100天当公司工作40天后,由于工作进度的需要,剩下的所有运输任务必须在50天完成 公司需要在加几辆卡车.
40天后,还剩下 10的6次方-40*10的4次方 = 600000 立方米,剩下的需要在 50 天运完,则每天需要运
= 12000 立方米,每辆卡车每天运送 10的4次方÷100 = 100 立方米,则必须有 1 = 120 辆卡车,所以,需要增加 120-100 = 20 辆卡车.
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其他类似问题
(000*40)/(50*)-100=20（辆）搞定！
(000*40)/(50*)-100=20辆要增加20辆
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