Question 243969
The length of a rectangle is 4 times the width. The area 144in squared. find the length and width of the rectangle.
let w = width
l=length
l=4w
so we have length= 4w
and width =w
area equals length times width
144 sq in =4w*w
144=4w^2
36=w^2
6=w
width=6 inches
length=4w=24 inches