a:b:c的問題

👨🏻‍🏫 學術台數學

用戶162939

2006-12-01 5:31 am

2a=b,3b=2c

a:b:c的比例

請列明步驟!!

回答 (4)

tsuntsunlam

2006-12-01 5:48 am

✔ 最佳答案

2a = b 和 3b = 2c
即是 b = 2a
同時 c = (3/2)b
即是 c = (3/2)(2)a
即是 c = 3a
a : b : c = a : 2a : 3a
所以 a : b : c = 1:2:3

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Chris

2006-12-01 6:51 am

2a=b
a/b=1/2
a:b=1:2

3b=2c
b/c=2/3
b:c=2:3

所以a:b:c=1:2:3

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用戶91936

2006-12-01 5:53 am

2a=b, 3b=2c
=> 6a=3b, 3b=2c
=> a:b:c = 6:3:2

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用戶116813

2006-12-01 5:52 am

If 2a=b and 3b=2c
so b is 2a
then 3b=2c change to
3(2a)=2c
6a=2c
3a=c
a:b:c(use c to do )
6:3:2

參考: me

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