某玩具店购进一种儿童玩具,计划每个售价36元,能盈利80%,在销售中出现了滞销,于是先后两次降价,售价降为25元求每次进价的百分率(精确到0.1%) 我会列方程但是不会解啊,36(1-x)²=25,(1-x
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/01 11:27:52
![某玩具店购进一种儿童玩具,计划每个售价36元,能盈利80%,在销售中出现了滞销,于是先后两次降价,售价降为25元求每次进价的百分率(精确到0.1%) 我会列方程但是不会解啊,36(1-x)²=25,(1-x](/uploads/image/z/3827980-28-0.jpg?t=%E6%9F%90%E7%8E%A9%E5%85%B7%E5%BA%97%E8%B4%AD%E8%BF%9B%E4%B8%80%E7%A7%8D%E5%84%BF%E7%AB%A5%E7%8E%A9%E5%85%B7%2C%E8%AE%A1%E5%88%92%E6%AF%8F%E4%B8%AA%E5%94%AE%E4%BB%B736%E5%85%83%2C%E8%83%BD%E7%9B%88%E5%88%A980%25%2C%E5%9C%A8%E9%94%80%E5%94%AE%E4%B8%AD%E5%87%BA%E7%8E%B0%E4%BA%86%E6%BB%9E%E9%94%80%2C%E4%BA%8E%E6%98%AF%E5%85%88%E5%90%8E%E4%B8%A4%E6%AC%A1%E9%99%8D%E4%BB%B7%2C%E5%94%AE%E4%BB%B7%E9%99%8D%E4%B8%BA25%E5%85%83%E6%B1%82%E6%AF%8F%E6%AC%A1%E8%BF%9B%E4%BB%B7%E7%9A%84%E7%99%BE%E5%88%86%E7%8E%87%EF%BC%88%E7%B2%BE%E7%A1%AE%E5%88%B00.1%25%29+%E6%88%91%E4%BC%9A%E5%88%97%E6%96%B9%E7%A8%8B%E4%BD%86%E6%98%AF%E4%B8%8D%E4%BC%9A%E8%A7%A3%E5%95%8A%2C36%EF%BC%881-x%EF%BC%89%26%23178%3B%3D25%2C%EF%BC%881-x)
xRN@dJb_
K"PFM
*T
-3sgʊ_pݩ&.=g=g-%f!?MުE[N@!o|CGEb=CyHYL|ykax$භ.gm
`3sLl:wD6i}y%XOn|
²
Iι 83̱}CȾۢM5ZY\X#T.QL]r8q/va" ҎO~K
m>W$URIGU,T7XZSjv|餲q>D8EO'dU^r^?i