Question

Lynn lines the bottom of her first pan with aluminum foil. The area of the rectangular piece of foil is 11 1/4 square inches. It's length is 4 and 1/2 inches. what is the width of the foil

Answer 1

The area of the rectangular foil is

`\begin{gathered} \text{area}=11(1)/(4)inches^2=(45)/(4)inches^2 \\ \text{length}=4(1)/(2)inches=(9)/(2)inches^2 \\ \text{width =?} \\ \text{area}=\text{length}* width \\ (45)/(4)=(9)/(2)w \\ \text{cross multiply} \\ 90=36w \\ w=(90)/(36)=(30)/(12)=(10)/(4)=(5)/(2)\text{ inches} \\ \end{gathered}`