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DS during a one day sale,a store sold each sweater of a certain type for 30$ more than the store's cost to purchase each sweater. How many of these sweaters were sold during the sale? (1 During the sale the total revenue from the sale of these sweater was 270$. (2During the sale the store sold each of these sweater at a price that was 50%greater than the store's cost to purchase each swaeter.
今天第一次做prep。。。数学第一题就给错了。。。真心无语啊。。。而且还想不明白。。。求解答啊。。。数学渣跪谢!
为什么不能选A呢,第一个自己不已经说了revenue是270,然后每个加价是30题目说了啊。。。各种想不明白啊。。。数学渣哭死。。。求解救。。。
不过看来第一题错也不会掉裤,只要别一直错就行貌似。。。 |
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