作者a8923022 (neil)
看板GMAT
标题[问题]一题数学题目
时间Thu Apr 2 07:01:27 2009
A clothing manufacturer has determined that she can sell 100 suits a week
at a selling price of $200 each. For each rise of $4 in the selling price she
will sell two less suits each week. If she sells the suit for X dollars each,
how many dollar a week will she receive from sales of the suits?
可否帮忙解这题目
谢谢
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1F：推 soham:100-2[(X-200)/4] = 200-X/2 不确定对不对 04/02 13:18