F.3 Maths Questions 40pts!
2009-12-29 1:13 am
圖片參考：http://imgcld.yimg.com/8/n/HA00135381/o/700912280121813873388460.jpg
Q.2 [[x(1+r%)]- x]/x = 0.25
solve the equation, r ? (corr. to 3 d.p)
回答 (2)
2009-12-29 1:30 am
✔ 最佳答案
1. 題目唔寫，我直接約[(2^n)(2^4) - 3(2^n)(2^3)] / (2^n)(2^2)
= [16(2^n) - 24(2^n)] / 4(2^n)
= -8(2^n) / 4(2^n)
= -2
2. 題目唔寫，我直接約
[(x+ xr/100) - x] / x = 0.25
xr/100 * 1/x = 0.25
r/100 = 0.25
r = 25
參考: Myself
2009-12-30 2:54 am
收錄日期: 2021-04-23 20:39:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091228000051KK01218