L = 2 W
P = 2 L + 2 W = 2 ( L + W )
276 = 2 ( L + W )
276 = 2 ( 2 W + W )
276 = 2 * 3 W
276 = 6 W Diwide both sides by 6
46 = W
W = 46 ft
L = 2 W = 2 * 46 = 92 ft
Proof:
P = 2 ( W + L ) = 2 * ( 46 + 92 ) = 2 * 138 = 276 ft
The plans for a she'd call for a rectangular floor with a perimeter of 276ft. The length is two times the width. Find the length and the width
1 answer