SOLUTION: the length of a rectangle is three times the width. what is the width if the area is 147 square feet?

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Question 303678: the length of a rectangle is three times the width. what is the width if the area is 147 square feet?
Answer by Stitch(470) About Me  (Show Source):
You can put this solution on YOUR website!
Set-Up
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A = L * W (Area of a rectangle)
Given: A = 147, L = 3W
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Solution:
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Substitute the given information into the equation for the area of a rectangle
%28147%29+=+%283W%29+%2A+W Simplify
147+=+3W%5E2 Divide both sides by 3
49+=+W%5E2 Take the squareroot of both sides
sqrt%2849%29+=+W
highlight%287+=+W%29