SOLUTION: The length of a rectangle is 6 in. more than twice its width. Its area is 108in(square). Find the length of the rectangle
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Question 136608: The length of a rectangle is 6 in. more than twice its width. Its area is 108in(square). Find the length of the rectangle Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! L=2W+6
W(2W+6)=108
2W^2+6W-108=0
2(W^2+3W-54=0
2(W+9)(W-6)=0
W-6=0
W=6 FOR THE WIDTH MEASUREMENT.
L=2*6+6
L=12+6
L=18 IS THE LENGTH MEASUREMENT.
PROOF:
6(2*6+6)=108
6(12+6)=108
6*18=108
108=108
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