求解!!!!!
abc不等於0,
若ab:bc=7/2:7/6,
3ca:bc=3/10:0.2,
則a:2b:c=?
回答 (1)
Sol
ab:bc=7/2:7/6
ab:bc=3:1
a:c=3:1
3ca:bc=3/10:2/10
3a:b=3:2
a:b=1:2
a b c
3: 1
1:2
────────────
3:6:1
a:2b:c=3:12:1
收錄日期: 2021-04-30 21:44:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160815235355AAa1RNT
檢視 Wayback Machine 備份