要找百分率是增加定減少..
更新1:
計出．百分率是增加定減少.的數值
數學1題..百分率
回答 (3)
2007-11-14 3:00 am
一定是減少減少
2007-11-14 2:47 am
1+20% = 1+0.2 = 1.2
1-10% = 1-0.1 = 0.9
3x1.2 = 3.6
5x0.9 = 4.5
3.6/4.5 = 0.8
3x1/5x1 = 3/5 = 0.6
百分率是增加133.3%
1-10% = 1-0.1 = 0.9
3x1.2 = 3.6
5x0.9 = 4.5
3.6/4.5 = 0.8
3x1/5x1 = 3/5 = 0.6
百分率是增加133.3%
參考: Veni - Vidi - Vici
2007-11-14 2:35 am
3x(1+20%)/5x(1-10%)減少
收錄日期: 2021-04-26 11:48:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071113000051KK02477