SOLUTION: The length of a rectangle is 1 yd more than twice its width, and the area of the rectangle is66 yd . Find the dimensions of the rectangle...
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Question 323736: The length of a rectangle is 1 yd more than twice its width, and the area of the rectangle is66 yd . Find the dimensions of the rectangle...
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
L=2W+1
A=LW
66=(2W+1)W
66=2W^2+W
2W^2+W-66=0
(2W-11)(W+6)=0
2W-11=0
2W=11
W=11/2
W=5.5 ans.
L=2*5.5+1=11+1=12 ans.
Proof:
66=12*5.5
66=66
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