Question

A laptop computer is purchased for $1300. After each year, the resale value decreases by 35%. What will the resale value be after 3 years?

Answer 1

$\bf \qquad \textit{Amount for Exponential Decay}\\\\ A=I(1 - r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ I=\textit{initial amount}\to &1300\\ r=rate\to 35\%\to \frac{35}{100}\to &0.35\\ t=\textit{elapsed time}\to &3\\ \end{cases} \\\\\\ A=1300(1-0.35)^3\implies A=1300(0.65)^3$