数学题:一件商品按成本提高30%,换季又打八折
- 时间:2020-06-07 17:53:28
- 分类:数学世界
- 阅读:161 次
数学题:一件商品按成本提高30%,换季又打八折,降价后每件卖104元,这种商品卖出一件是赔是赚?赔或赚多少钱?[解方程,由“Smile-资优网”提出]
数学题解答:设成本为x元。
(1+30%)x × 80% =104
1.04 x =104
x=100
成本是100元,卖104元。所以是赚了,赚了:104-100=4(元)
推荐阅读:Smart Tips for Travel Bloggers How to Create Content for a Narrow Niche 5 SEO Tips Every New Blogger Should Keep in Mind 5 Inspiring Blog Design Examples that Improved Readership How to Check If Two Strings are Buddy Strings? Innovative Plugins You Need On Your Mobile Business Site Why Having a Phone Service is a Must for Businesses? How to Validate a Perfect Number (Integer)? Binary Prefix Divisible By 5 – Java/C++ Coding Exercise The DNS Lookup Tool in Java (InetAddress)
- 评论列表
-
- 添加评论