SOLUTION: A picture is four inches longer than it is wide and the total area is 77 square inches. What are the dimensions of the picture?
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Question 728595: A picture is four inches longer than it is wide and the total area is 77 square inches. What are the dimensions of the picture?
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
AREA=-LW
L=W+4
77=(W+4)W
77=W^2+4W
W^2+4W-77=0
(W+11)(W-7)=0
W-4=0
W=7 ANS. FOR THE WIDTH.
PROOF:
77=(7+4)7
77=11*7
77=77
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