要有詳細過程!!
3a=5b, a=7c
求a:b:c
MAT!!10分!急!比!
2007-04-25 6:52 am
回答 (2)
2007-04-25 8:03 pm
3a=5b a=7c
a/b=3/5 a/c=7
所以a:b=3:5 所以a:c=7:1
a:b =3:5
b:c= 7:1
所以a:b:c=21:35:5
a/b=3/5 a/c=7
所以a:b=3:5 所以a:c=7:1
a:b =3:5
b:c= 7:1
所以a:b:c=21:35:5
參考: ME
2007-04-25 7:18 am
3a=5b,a=7c
i.e.21c=5b
21/5=b/c
a/c=7/1=35/5
所以a:b:c=35:21:5
i.e.21c=5b
21/5=b/c
a/c=7/1=35/5
所以a:b:c=35:21:5
收錄日期: 2021-04-13 00:24:10
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070424000051KK05412