英文F.1 Math題一問(列式+step),20Fun ar!!!very急
2007-12-10 8:01 am
Tom deposits $50000 in a bank for 5 yearsat an interest rate is 8.5%p.a.Keiith deposit a different sum of money in the same bank for 10 year at an interest rate 10% p.a. If the simple interests they receive are the same,how much does keith deposit?
回答 (3)
2007-12-10 8:08 am
✔ 最佳答案
21250let y be the money that Keith deposit
50000*8.5%*5 = y*10%*10
21250 = y
2007-12-10 00:09:39 補充：
50000*8.5%*5 = 21250y*10%*10 = 1y
參考: 自己
2007-12-11 1:33 am
let $P be the amount that Keith deposits
50000*5*8.5% = P*10%*10
P= 21250
50000*5*8.5% = P*10%*10
P= 21250
2007-12-10 8:10 am
if calculate with simple interest ...
Let $P be the deposit of keith,
50000 x 5 x 8.5% = P x 10 x 10%
P = 21250
So the deposit of keith is $21250.
Let $P be the deposit of keith,
50000 x 5 x 8.5% = P x 10 x 10%
P = 21250
So the deposit of keith is $21250.
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