SOLUTION: A rectangle is 7 inches longer than it is wide. Find the dimensions of the rectangle if its area is 228 sq-inches.
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Question 864564: A rectangle is 7 inches longer than it is wide. Find the dimensions of the rectangle if its area is 228 sq-inches. Answer by checkley79(3341) (Show Source):
You can put this solution on YOUR website! L=W+7
AREA=L*W
228=(W+7)W
228=W^2+7W
W^2+7W-228=0
(W+19)(W-12)=0W-12=0
W=12 ANS. FOR THE WIDTH.
L=12+7
L=19 ANS FOR THE LENGTH.
PROOF:
228=19*12
228=228
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