rectangular piece of carpet covers 200 yd2. The width is 9 yd less than the length. Find the length and width. Round to the nearest tenth of a yard.

Question

a rectangular piece of carpet covers 200 yd2. The width is 9 yds less than the

length. Find the lenth and width. Round to the nearest tenth of a yard.

Answer 1

W=L-9

LW = 200

L(L-9) =200

L^2 - 9L -200= 00

L =9/2 + (1/2)sqr(81+800)= 19.3 yards long rounded down

W = 10.3 yards long rounded down

10.3 x 19.3 = 198.8