SOLUTION: The length of a rectangular banner is 5 feet longer than its width. If the area is 66 square feet, find the dimensions.
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Question 665680: The length of a rectangular banner is 5 feet longer than its width. If the area is 66 square feet, find the dimensions.
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
a = (l)(w) = 66
l = w + 5
...
Substitute l into the area equation
(w+5)(w) = 66
w^2 + 5w - 66 = 0
(w+11 )(w-6)
w = -11 (width cannot be negative)
ft
l = 66/6 = ft
...
Check
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