各位知識朋友 , 入黎幫下手呀!!!
我有數學問題唔識 , 幫手解答呀( 數學F.2 )!!!!!!!!!!!!!!! (要算式)
題目網址 : http://www.sendspace.com/file/cfkbzx
* 該檔為 doc; 請用word 開啟`
<40 m> F.2 百分率 (5)
2009-07-23 3:43 am
回答 (1)
2009-07-23 4:35 am
✔ 最佳答案
1. D [30 000x(1+9/4%)-8000]x(1+9/4%)-8000
=$15 185
2.A
20000x(1+6/365%)1095-20000x(1+6/2%)2
=$63
3. B
2000000x(1+25%)4-2000000
=$2 880 812.5
4.D
Let the number of year be n.
70 000x(1-15%)n=42989
70 000x(0.85)n=42989
(0.85)n=42989/70000
nlog0.85=log(42989/70000)
n= log(42989/70000) / log0.85
=3
5.C
1x(1+10%)3
=1.331m
6.D
$Px(1+r%)n-$P
=$P[(1+r)n-1]
收錄日期: 2021-04-23 20:40:30
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090722000051KK01823