中三-百分數增減
2011-12-29 12:48 am
回答 (2)
2011-12-29 12:57 am
✔ 最佳答案
(a) P(1 + 15%)(1 - 15%) = 0.9775P => F(b) T
(c) 1000 * (1 + 25%) = 1250
1000 * (1 + 10%) * (1 + 15%) = 1265
因此是F
(d) A' = x(1 + 20%)y(1 - 20%) = 0.96xy = 0.96A => F
(e) B' = x(1 + 10%) + y(1 + 10%) = 1.1x + 1.1y = 1.1(x + y) = 1.1B
因此是T
2011-12-29 2:27 am
(a)
F
(b)
T
(c)
F
(d)
F
(e)
T
F
(b)
T
(c)
F
(d)
F
(e)
T
收錄日期: 2021-04-26 19:16:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111228000051KK00618