一本练习本的价钱是0.50元，买2本应付_1元，买m本应付_2元，x元可以买_3本。_刷题宝

题干

一本练习本的价钱是0.50元，买2本应付____元，买m本应付____元，x元可以买____本。

上一题下一题 0.0难度选择题更新时间:2017-05-02 06:07:31

答案(点此获取答案解析）

1,0.50m,x÷0.50

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