SOLUTION: The area on a wall covered by a rectangular poster is 320 square inches. The length of the poster is 1.25 times longer than the width of the poster. What are the dimensions of the
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Question 999334: The area on a wall covered by a rectangular poster is 320 square inches. The length of the poster is 1.25 times longer than the width of the poster. What are the dimensions of the poster?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
A=L*W
but L=1.25 W
A=1.25 W^2=320
1.25W^2-320=0
W^2-256=0, dividing everything by 1.25
W= +/-16, but only +16 makes sense
width is 16 in
Length is 20 in
The area is 320 in^2
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