1. a:b= 2分之1 : 12分之5 , b:c = 4分之1:12分之5
求abc~~~~~~
請加以解釋~
F1數學唔識~請指教下~
2007-03-04 8:14 pm
回答 (5)
2007-03-04 8:23 pm
a : b = 0.5 : 2.4
b :c = 0.25 :2.4
a : b : c = 2.5 : 12 : 115.2
b :c = 0.25 :2.4
a : b : c = 2.5 : 12 : 115.2
2007-03-04 8:23 pm
a:b= 1/2:5/12 and b:c=1/4:12/5
let [a:b= 1/2:5/12] be (1), and [b:c=1/4:12/5] be (2)
(1)*12,
a:b=6:5.
(2)*20,
b:c=5:48.
so, a:b:c=6:5:48
a=6, b=5,c=48.
我讀英文~ 要轉中文就自己黎啦~
let [a:b= 1/2:5/12] be (1), and [b:c=1/4:12/5] be (2)
(1)*12,
a:b=6:5.
(2)*20,
b:c=5:48.
so, a:b:c=6:5:48
a=6, b=5,c=48.
我讀英文~ 要轉中文就自己黎啦~
參考: me~
2007-03-04 8:22 pm
a:b=1/2:5/12,b:c=1/4:5/12
a:b =1/2:5/12
b:c= 1/4 :5/12
----------------------------
a:b:c=1/8:5/48:25:144
2007-03-04 12:23:19 補充：
25:144 change to 25/144
a:b =1/2:5/12
b:c= 1/4 :5/12
----------------------------
a:b:c=1/8:5/48:25:144
2007-03-04 12:23:19 補充：
25:144 change to 25/144
參考: ME F.1
2007-03-04 8:19 pm
a/b= 1/2: 5/12
b/c= 1/4: 5/12
b/c= (1/4: 5/12)5/3
b/c= 5/12: 25/36
a:b:c=1/2: 5/12: 25/36
化簡後..出ans
b/c= 1/4: 5/12
b/c= (1/4: 5/12)5/3
b/c= 5/12: 25/36
a:b:c=1/2: 5/12: 25/36
化簡後..出ans
參考: me
收錄日期: 2021-04-12 22:17:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070304000051KK01587