
七年級3-3正比與反比
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
蔡佩旻 蔡佩旻
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者成正比?
一天 24 小時中,睡眠與醒著的時間
父親的年齡與體重
距離固定,車速和時間
圓的半徑和周長
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
( )下列各敘述中,何者成反比?
當面積固定時,長方形的長與寬
)圓形的面積與半徑
當速率固定時,距離和時間
正三角形的周長與邊長
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
( )下列各式中,何者表示 x 與 y 成正比?
3x-4y=5
-3x+y=0
y=3x2
y=x/5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
( )若 x 與 y 成正比,當 x=5 時,y=60,則下列敘述何者正確?
x 與 y 的關係式為 y=12x
當 x=6 時,y=60
當 x=6 時,y=12
當 y=6 時,x=2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
( )已知 x 與 y 成正比,y 與 z 成正比,若當 x=6 時,y=42,z=3,則當 z=8 時,x=?
4
12
16
24
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
( )下列何者 y 與 x 成反比?
y=x/2
x-5y=10
y=3x-5
1-3xy=5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
( )已知 x 與 y 成正比,y 與 z 成反比。若當 x=16 時,y=4,z=3,則當 z=60 時,x=?
4/5
5/4
20
24
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