某种彩电先按原价提高百分之40,然后在广告上促销"大酬宾,八折优惠",结果反而多赚270元,求彩电原标价.设彩电原标价为×元.
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/19 09:40:18
![某种彩电先按原价提高百分之40,然后在广告上促销](/uploads/image/z/2024929-1-9.jpg?t=%E6%9F%90%E7%A7%8D%E5%BD%A9%E7%94%B5%E5%85%88%E6%8C%89%E5%8E%9F%E4%BB%B7%E6%8F%90%E9%AB%98%E7%99%BE%E5%88%86%E4%B9%8B40%2C%E7%84%B6%E5%90%8E%E5%9C%A8%E5%B9%BF%E5%91%8A%E4%B8%8A%E4%BF%83%E9%94%80%22%E5%A4%A7%E9%85%AC%E5%AE%BE%2C%E5%85%AB%E6%8A%98%E4%BC%98%E6%83%A0%22%2C%E7%BB%93%E6%9E%9C%E5%8F%8D%E8%80%8C%E5%A4%9A%E8%B5%9A270%E5%85%83%2C%E6%B1%82%E5%BD%A9%E7%94%B5%E5%8E%9F%E6%A0%87%E4%BB%B7.%E8%AE%BE%E5%BD%A9%E7%94%B5%E5%8E%9F%E6%A0%87%E4%BB%B7%E4%B8%BA%C3%97%E5%85%83.)
某种彩电先按原价提高百分之40,然后在广告上促销"大酬宾,八折优惠",结果反而多赚270元,求彩电原标价.设彩电原标价为×元.
某种彩电先按原价提高百分之40,然后在广告上促销"大酬宾,八折优惠",结果反而多赚270元,求彩电原标价.
设彩电原标价为×元.
某种彩电先按原价提高百分之40,然后在广告上促销"大酬宾,八折优惠",结果反而多赚270元,求彩电原标价.设彩电原标价为×元.
(x+0.4x)*0.8-x=270 1.12x-x=270 x=2250