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初三 变数法(variation)测验模拟题

Authored by 陈玟全 陈玟全

Mathematics

9th Grade

Used 103+ times

初三 变数法(variation)测验模拟题
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5 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

若y依x而正变,y=8,则x=16.求y的值当x=3.

32\frac{3}{2}

66

16\frac{1}{6}

23\frac{2}{3}

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

若 y 依x而反变,y=5,则x=2.求y的值当x=20.

200200

12\frac{1}{2}

2

1200\frac{1}{200}

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

若y依x和z而正变,y=8,x=2,z=1.求y的值当x=3,z=2.

96

6

24

12

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

若y依x而正变,依z而反变,y=6,x=2,z=3.求 x 的值当y=27,z=2.

13.5

54

27

6

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

若y依x和z而反变,y=1,x=3,z=4.求z的值当x=1,y=6.

2

36

72

24

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