SOLUTION: The perimeter of a rectangle is 80 ft. Find the dimensions of the length is 5 feet longer than 4 times the width. What is the area of the rectangle?
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Question 118207: The perimeter of a rectangle is 80 ft. Find the dimensions of the length is 5 feet longer than 4 times the width. What is the area of the rectangle? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The perimeter of a rectangle is 80 ft. Find the dimensions if the length is 5 feet longer than 4 times the width. What is the area of the rectangle?
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Let the width be "x" ft.
Then length = 4x+5 ft
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EQUATION:
Perimeter = 2(length + width)
80 = 2(4x+5+x)
40 = 5x+5
x = 7 ft
4x+5 = 4*7+5 = 33 ft
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Area = 7*33 = 231 sq. ft.
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Cheers,
Stan H.
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