标题: OG PS 205题目 [打印本页] 作者: christina201008 时间: 2015-12-23 22:11 标题: OG PS 205题目 答案是E，求解 作者: WilliamT 时间: 2015-12-23 23:34
The amount Mary has in the end is x-y dollars and she worked for 8 hours;
The amount John has in the end is x+y dollars and he worked for 10 hours;;
We are told that in this case their hourly wage was the same: ,hourly wage formula=wage/(#of hours worked)
(x-y)/8=(x+y)/10
from (x−y)/8=(x+y)/10 we get that x=9y.
Answer: E. 作者: christina201008 时间: 2015-12-26 10:28
WilliamT 发表于 2015-12-23 23:34
The amount Mary has in the end is x-y dollars and she worked for 8 hours;
The amount John has in the ...