某品牌文具原价为a元,现有三种调价方案:①先提价
,再降价
;②先降价
,再提价
;③先提价
,再降价
;
(1)通过计算回答这三种调价结果是否一样?最后是不是都恢复了原价?
(2)若先降价
,再提价
,可恢复到原价.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f733b1ceeead9ff892539d46a23f3626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f733b1ceeead9ff892539d46a23f3626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f733b1ceeead9ff892539d46a23f3626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f733b1ceeead9ff892539d46a23f3626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ab5c1b86983380e75e0d12ddc92705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ab5c1b86983380e75e0d12ddc92705.png)
(1)通过计算回答这三种调价结果是否一样?最后是不是都恢复了原价?
(2)若先降价
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ee628efd6b2f7296c106dd5cbae42f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f67a88085b1866f33f894293da618c8.png)
更新时间:2023-11-13 14:17:08
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