已知A:B:C=4:6:9。若A=2,求B及C的值。

2014-03-04 2:16 am
已知A:B:C=4:6:9。

若A=2,......

回答 (3)

2014-03-04 2:39 am
✔ 最佳答案
A:B:C=4:6:9

即A=4时,B=6,C=9

∴当A=2时,B=3,C=4.5

2014-03-03 18:41:00 補充:
批卷貓 :
你好似打错咗!

2014-03-06 18:53:00 補充:
批卷貓:
其實我唔系好记得你点做啦~
Sorry!

2014-03-09 18:10:45 補充:
批卷貓 :

k method.

Let A = 4k , B = 6k , C = 9k where k ≠ 0 is a constant.

A = 4k = 2

k = 0.5

B = 6k = 3

C = 9k = 4.5
參考: me, 批卷貓
2014-03-06 5:35 am
2:B:C=4:6:9
用內項=外項
2*9=18
b=18/6=3
c=18/4=4.5
參考: 窩
2014-03-04 3:26 am
leo lam 你講得好岩~

所以等我刪除啦~

☆ヾ(◕‿◕)ノ

2014-03-03 19:27:27 補充:
其實我想教佢果個方法~

或者你加入你的答案之中等佢學下啦~

2014-03-07 21:03:56 補充:
k method.

Let A = 4k , B = 6k , C = 9k where k ≠ 0 is a constant.

A = 4k = 2

k = 0.5

B = 6k = 3

C = 9k = 4.5


收錄日期: 2021-04-13 20:12:11
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140303000051KK00105

檢視 Wayback Machine 備份