Question

Brittany has $900 in a savings account that earns 10% annually. The interest is not compounded. How much interest will she earn in 1 year?

Answer 1

`~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \$900\\ r=rate\to 10\%\to (10)/(100)\dotfill &0.10\\ t=years\dotfill &1 \end{cases} \\\\\\ I = (900)(0.10)(1)\implies I=90`

Answer 2

90$

Explanation:

You multiply the number by 0.10 for your answer.