F1 mathematics problem
回答 (3)
2009-04-15 2:54 am
3x = 4y = 6z
y=3/4 x
z=1/2 x
x : y : z=x : 3/4 x :1/2 x
=4:3:2
y=3/4 x
z=1/2 x
x : y : z=x : 3/4 x :1/2 x
=4:3:2
收錄日期: 2021-04-23 20:36:42
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https://hk.answers.yahoo.com/question/index?qid=20090414000051KK01551