
简单不等式与坐标系选择题
Quiz
•
Mathematics
•
7th Grade
•
Hard
Shiqi Jiang
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小聪用100元钱购买笔记本和钢笔共30件.已知每本笔记本2元,每支钢笔5元,求小聪最多能买多少支钢笔.设小聪能买x支钢笔,根据题意列不等式为
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一辆新型电动汽车售价为26万元,已知销售这种电动汽车获利超过10%,设这辆新型电动汽车的出厂价为x万元,则满足x的不等式为
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列表示的不等关系中,正确的是
A.a不是负数,表示为a>0
C.x与1的和是非负数,表示为x+1>0
D.x不大于4,表示为x<4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小乐和妈妈去公园游玩,小乐身高1.4米,妈妈身高1.6米.小乐登上一处有10级台阶的观景台(每级台阶高度为a米),开心地说:"妈妈,现在两个你的身高加起来都没我高啦!"由此可得关于的不等式是
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某超市花费1000元购进蓝莓100千克,销售中有15%的正常损耗,为避免亏本(其它费用不考虑),售价至少定为每千克多少元?设售价为每千克x元,则下列不等式正确的是
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某农户今年的收入比去年至少多1.5万元,记去年的收入为p万元,今年的收入为q万元,则可列不等式为
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