一道英语数学应用题Ben put her money in the bank.If the interest rate is 16% p.a.,she can get a total of $660 from her account after 2 years.How much did she put in the bank?对不起!我对方程式并不是很熟悉,因此尽量不要写方
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一道英语数学应用题Ben put her money in the bank.If the interest rate is 16% p.a.,she can get a total of $660 from her account after 2 years.How much did she put in the bank?对不起!我对方程式并不是很熟悉,因此尽量不要写方
一道英语数学应用题
Ben put her money in the bank.If the interest rate is 16% p.a.,she can get a total of $660 from her account after 2 years.How much did she put in the bank?
对不起!我对方程式并不是很熟悉,因此尽量不要写方程式.
一道英语数学应用题Ben put her money in the bank.If the interest rate is 16% p.a.,she can get a total of $660 from her account after 2 years.How much did she put in the bank?对不起!我对方程式并不是很熟悉,因此尽量不要写方
X*(1+16%)^2=660
我想你能读懂吧：
开始：
首先,我们知道利率 0.16
又知道她总共可以拿回多少钱 660
问:他存了多少钱在银行里?
现在我们假设她存款X元（只能用方程咯）
共存咯两年,那么就是指交了一年的税,在这一年的税收和本金上又交了一年
得方程式：(1+16%)^2
现在再乘上本金 X
得到了总和 660
- -
x(1+0.16)^2=660
x=490.5
在中国存款可不是这么算利息的，利息＝本金*利率*时间，所以x*0.16*2+x=660算得500，方程有什么不好的啊