Find a:b
(2a-b):(a-b)=5:2
Find a:b:c
a:c=1/4:1/3 and b:c=4/5:8/3
*I need steps
快!兩題數學Two Math questions,help!?
2016-09-13 1:51 pm
回答 (1)
2016-11-12 3:43 am
(2a-b):(a-b)=5:2
4a-2b=5a-5b
3b=a
a:b=3:1
a:c=1/4:1/3
a:c=3:4=30:40
b:c=4/5:8/3
b:c=12:40
a:b:c=30:12:40
a:b:c=15:6:20
4a-2b=5a-5b
3b=a
a:b=3:1
a:c=1/4:1/3
a:c=3:4=30:40
b:c=4/5:8/3
b:c=12:40
a:b:c=30:12:40
a:b:c=15:6:20
收錄日期: 2021-04-18 15:36:31
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160913055122AAuJgQ9