if a/7=b/3 and 2b=5c ,find (a) a:b and b:c
(b)a:b:c
F2 Maths (ratio)
2012-12-12 5:11 am
回答 (1)
2012-12-12 5:32 am
✔ 最佳答案
a. a/7=b/3
3a=7b (mult. both side by 21)
a/b=7/3(divide both side by 3b)
a:b =7:3
2b=5c
b/c=5/2
b:c=5:2
b.
a:b=7:3=35:15
b:c=5:2=15:6
thefore a:b:c=35:15:6
參考: me
收錄日期: 2021-04-13 19:11:05
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