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吃吃吃吃吃Chen
下面以历年考题为例:例1:一个人到书店购买了一本书和一本杂志,在付钱时,他把书的定价中的个位上的数字和十位上的看反了,准备付21元取货。售货员说:“您应该付39元才对。”请问书比杂志贵多少钱?
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We went to Xinhua Bookstore where we read books for a while and then bought a book and several pens.
10x+y)纠正后的书价应为10y+x 则杂志的价格为39-(10y+x)等量关系建立了21-(10x+y)=39-(10y+x)得y-x=2 根据实际情况代数
17年 本息总共20000元 10000* (1.042)^X=20000 X=16.***小数就不写了,所以是17年 书是20,杂志是19 假
A little boy to buy books. Paintings hung a bookstore. There is a table. Put on
He bought a magazine the day before yesterday.一般疑问句 Did he buy a magazine the da
Dear Manager,My name is Li Hua. Last weekend, I bought an English dictionary in
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