试题与答案

某商家经销一种绿茶,已知绿茶每千克成本50元,在试销时间内发现: 单价定为每千克

题型:解答题

题目:

某商家经销一种绿茶,已知绿茶每千克成本50元,在试销时间内发现:

单价定为每千克70元时,月销售量为l00千克,销售单价每提高5元,月销量减少10,设该绿茶的销售单价为每千克x元(x≥70),月销售利润为y(元).

(1)求y与x之间的函数关系式(不必写出自变量x的取值范围);

(2)若用于装修门面已投资3000元,该商家在第一个月里,销售单价为每千克85元,在第二个月里受物价部门干预,销售单价不得高于90元,在第二个月销售结束后发现这两个月不仅收回投资,而且刚好获得1700元的利润,求第二个月时该绿茶的销售单价为多少元?

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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