數學題....

2007-01-31 4:30 am
比:
求下列各題中a:b:c

(A)a/b=2,b/c=5

(B)a=3b,b=5c

回答 (4)

2007-01-31 4:39 am
✔ 最佳答案
(A)a=2b b=5c
a=2b=10c
a:b:c=1/1:1/2:1/10
a:b:c=10:5:1

(B)a=3b b=5c
a=3b=15c
a:b:c=1/1:1/3:1/15
a:b:c=15:5:1

do you understand?
2007-02-02 1:53 am
(A)10:5:1
(B) 15 : 5:1
2007-01-31 11:11 pm
(A)10:5:1
(B)15:5:1
2007-01-31 4:39 am
(A)10:5:1
(B)15:5:1


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