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](/uploads/image/z/3876458-50-8.jpg?t=%E4%B8%80%E9%81%93%E8%8B%B1%E8%AF%AD%E6%95%B0%E5%AD%A6%E5%BA%94%E7%94%A8%E9%A2%98Ben+put+her+money+in+the+bank.If+the+interest+rate+is+16%25+p.a.%2Cshe+can+get+a+total+of+%24660+from+her+account+after+2+years.How+much+did+she+put+in+the+bank%3F%E5%AF%B9%E4%B8%8D%E8%B5%B7%21%E6%88%91%E5%AF%B9%E6%96%B9%E7%A8%8B%E5%BC%8F%E5%B9%B6%E4%B8%8D%E6%98%AF%E5%BE%88%E7%86%9F%E6%82%89%2C%E5%9B%A0%E6%AD%A4%E5%B0%BD%E9%87%8F%E4%B8%8D%E8%A6%81%E5%86%99%E6%96%B9)
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