标题: 算提成的一道题目其实挺简单的说还是放出来看看 [打印本页] 作者: sunyuwei 时间: 2014-11-28 21:49 标题: 算提成的一道题目其实挺简单的说还是放出来看看 A salesperson received a 6-percent commission on the amount of total sales up to and including $10,000, and an r-percent commission on the amount of total sales over $10,000.If the salesperson received a total commission of $920 on total sales of $14,000, what was the value of r?
A.3.2
B.4.3
C.6.6
D.8.0 正确
E.9.2