1 1 16
-- : --- = --- : X
3 20 9
數學題，我唔識，功課哩嘎。急急急急急急急急急急
2007-04-06 1:47 am
回答 (2)
2007-04-06 1:52 am
✔ 最佳答案
1 / 3 : 1 / 20 = 16 / 9 : X1 / 20 * 16 / 9 = 1 /3 X
4 / 45 = 1 / 3X
1 / 3 X = 4 / 45
X = 4 * 3 / 45
= 12 / 45
= 4 / 15
2007-04-06 2:11 am
1 / 3 : 1 / 20 = 16 / 9 : X
1 / 20 * 16 / 9 = 1 /3 X
4 / 45 = 1 / 3X
1 / 3 X = 4 / 45
X = 4 * 3 / 45
= 12 / 45
= 4 / 15
1 / 20 * 16 / 9 = 1 /3 X
4 / 45 = 1 / 3X
1 / 3 X = 4 / 45
X = 4 * 3 / 45
= 12 / 45
= 4 / 15
收錄日期: 2021-04-12 23:44:56
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070405000051KK03005