Question

a rectangular table is five times as long as it is wide. If the area is 80 ft square, find the length and width of the table?

Answer 1

let the width be x and length be 5x

area=l*w
80=(5x)(x)
80=5x^2
x^2=80/5
x=sqrt16
x=4

therefore,width=4 and length=5(4)=20