2025年教学资料:2.5 不等式应用举例(分层作业)(原卷版)
2.5不等式应用举例分层作业1.北京2022冬奥会吉祥物“冰墩墩”和“雪容融”受到大家的喜爱,某网店出售这两种吉祥物礼品,售价如图所示.小明妈妈一共买10件礼品,总共花费不超过900元,如果设购买冰墩墩礼品x件,则能够得到的不等式是( )A.100x+80(10﹣x)>900B.100+80(10﹣x)<900C.100x+80(10﹣x)≥900D.100x+80(10﹣x)≤9002.某地每年消耗木材约20万立方米,每立方米售价480元,为了减少木材消耗,决定按征收木材税,这样,每年的木材消耗量减少万立方米,为了既减少木材消耗又保证税金收入每年不少于180万元,t的取值范围是( )...
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