Question

The width of a rectangle is half as long as the length. The rectangle has an area of 18 square feet. What are the length and width of the rectangle?

Answer 1

W=0.5L ............(1)
W*L=18 sq ft ................(2)
substitute (1) in (2)
0.5L*L=18
0.5(L^2)=18
L=6 ft
W=3 ft

Answer 2

Thank youuuuu :D

Answer 3

A=L*W
W=1/2L
18=L*(1/2L)
18=1/2L^2
\[L^2=18*\frac{2}{1}\]
L^2=36
L=6