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一元一次不等式

Authored by 陳 嘉卿

Mathematics

7th Grade

Used 47+ times

一元一次不等式
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12 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 9 pts

不等式-2x+6 \ge  -x的解為下列何者?

x \le  2

x \ge  2

x \le  6

x \ge  6

2.

MULTIPLE CHOICE QUESTION

2 mins • 9 pts

不等式 5(x-3)> 2x+6的解為下列何者?

x>6

x<6

x>7

x<7

3.

MULTIPLE CHOICE QUESTION

2 mins • 9 pts

 x>2

x<2

Answer explanation

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4.

MULTIPLE CHOICE QUESTION

1 min • 9 pts

第一次段考成績中,國文75分、英文64分、數學x分,若此三科的平均分數不超過70分,則依此關係可列出不等式為下列何者?

75+64+x370\frac{75+64+x}{3}\le70

75+64+x370\frac{75+64+x}{3}\ge70

75+64+x3<70\frac{75+64+x}{3}<70

75+64+x3>70\frac{75+64+x}{3}>70

5.

MULTIPLE CHOICE QUESTION

1 min • 9 pts

在數線上圖示3x-2 \ge  2x+7的解為下列何者?

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6.

MULTIPLE CHOICE QUESTION

3 mins • 9 pts

解一元一次不等式acbc時,得到正確答案為ab,則下列何者正確?

c>0

c<0

c=0

c的正負不影響答案

Answer explanation

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7.

MULTIPLE CHOICE QUESTION

3 mins • 9 pts

有一個二位數,其十位數字與個位數字的和為10,若將十位數字與個位數字對調之後,所得的新數比原數的3倍還小,則此二為數最小為多少?

46

37

28

19

Answer explanation

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