Mathematics, 04.03.2020 02:32 462nolan
The area of a rectangle is 4x+32. The length is 4. Find the width.
Answers: 3
![\bf \textit{area of a rectangle}\\\\ A=Lw~~ \begin{cases} L=length\\ w=width\\[-0.5em] \hrulefill\\ A=4x+32\\ L=4 \end{cases}\implies 4x+32=4w \\\\\\ \cfrac{4x+32}{4}=w\implies \cfrac{~~\begin{matrix} 4 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~ (x+8)}{~~\begin{matrix} 4 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}=w\implies \boxed{x+8=w}](/tpl/images/0533/1396/fb7f1.png)
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The area of a rectangle is 4x+32. The length is 4. Find the width....
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