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2 years ago

12

After buying school lunch, Terry has $4.40 left. If school lunch costs $2.50, how much did Terry have before he bought school lu

nch?

2 answers:

Aneli [31]2 years ago

4 0

Answer:

$6.90...................

BabaBlast [244]2 years ago

4 0

Answer; 6.90 around there

Step-by-step explanation:

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$~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill &\£95000\\ P=\textit{original amount deposited}\dotfill &\£80000\\ r=rate\to r\%\to \frac{r}{100}\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{yearly, thus once} \end{array}\dotfill &1\\ t=years\dotfill &5 \end{cases}$

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