SOLUTION: Find the lenght of a rectangle meeting the specified conditions. The perimeter is 108 feet and the length is 80 percent of the width.

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Question 22175: Find the lenght of a rectangle meeting the specified conditions. The perimeter is 108 feet and the length is 80 percent of the width.
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Start with the formula for the perimeter of a rectangle:
P+=+2%28L%2BW%29 where L = Length and W = Width. P is given as 108 feet, and L = 0.8W, so:
2%280.8W%2BW%29+=+108 Simplify and solve for W.
2%281.8W%29+=+108
3.6W+=+108 Divide both sides by 3.6
W+=+30feet.
L+=+0.8W
L+=+0.8%2830%29
L+=+24feet.