摘要:15.某商场在促销期间规定:商场内所有商品按标价的80%出售,同时.当顾客在该商场内消费一定金额后.按以下方案获得相应金额的奖券: 消费金额(元)的范围 获得奖券的金额(元) 30 60 100 120 根据上述促销方法.顾客在该商场购物可以获得双重优惠.例如:购买标价为400元的商品.则消费金额为320元.获得的优惠额为(元).设购买商品得到的优惠率=.试问: (1)购买一件标价为1200元的商品.顾客得到的优惠率是多少? (2)对于标价在元内的商品.顾客购买商品标价在什么范围内时.可得到不小于的优惠率?

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((本题满分15分)
某有奖销售将商品的售价提高120元后允许顾客有3次抽奖的机会,每次抽奖的方法是在已经设置并打开了程序的电脑上按“Enter”键,电脑将随机产生一个                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        1~6的整数数作为号码,若该号码是3的倍数则顾客获奖,每次中奖的奖金为100元,运用所学的知识说明这样的活动对商家是否有利。

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((本题满分15分)

某有奖销售将商品的售价提高120元后允许顾客有3次抽奖的机会,每次抽奖的方法是在已经设置并打开了程序的电脑上按“Enter”键,电脑将随机产生一个                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         1~6的整数数作为号码,若该号码是3的倍数则顾客获奖,每次中奖的奖金为100元,运用所学的知识说明这样的活动对商家是否有利。

 

 

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