ChaseDream
搜索
返回列表 发新帖
查看: 2614|回复: 0
打印 上一主题 下一主题

[数学] 求助道难题

[复制链接]
跳转到指定楼层
楼主
发表于 2018-7-12 11:39:50 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
There was a $25 discount on every purchase of $75 there was a 10% charge on shipping which was added before the discount and 20% sales tax after the discount was added. If john paid total $300, what was the original amount purchase if no sales tax was added per $75?

答案是240.不理解。 求助论坛大神们!!
收藏收藏 收藏收藏
您需要登录后才可以回帖 登录 | 立即注册

Mark一下! 看一下! 顶楼主! 感谢分享! 快速回复:

手机版|ChaseDream|GMT+8, 2024-11-29 00:22
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号

ChaseDream 论坛

© 2003-2023 ChaseDream.com. All Rights Reserved.

返回顶部