document.write( "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. \n" ); document.write( "

Algebra.Com's Answer #10712 by Earlsdon(6294) $\"\"$ $\"About$

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Start with the formula for the perimeter of a rectangle:
\n" ); document.write( " $\"P+=+2%28L%2BW%29\"$ where L = Length and W = Width. P is given as 108 feet, and L = 0.8W, so:
\n" ); document.write( " $\"2%280.8W%2BW%29+=+108\"$ Simplify and solve for W.
\n" ); document.write( " $\"2%281.8W%29+=+108\"$
\n" ); document.write( " $\"3.6W+=+108\"$ Divide both sides by 3.6
\n" ); document.write( " $\"W+=+30\"$ feet.
\n" ); document.write( " $\"L+=+0.8W\"$
\n" ); document.write( " $\"L+=+0.8%2830%29\"$
\n" ); document.write( " $\"L+=+24\"$ feet.
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