document.write( "Question 1050662: The area of a rectangle is 108 cm^2. If the length is 3 cm longer than the width, what is the perimeter? \n" ); document.write( "

Algebra.Com's Answer #666246 by Fombitz(32388) $\"\"$ $\"About$

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For a rectangle,
\n" ); document.write( " $\"A=L%2AW=108\"$
\n" ); document.write( "and,
\n" ); document.write( " $\"L=3%2BW\"$
\n" ); document.write( "Substituting,
\n" ); document.write( " $\"%283%2BW%29W=108\"$
\n" ); document.write( " $\"W%5E2%2B3W=108\"$
\n" ); document.write( " $\"W%5E2%2B3W-108=0\"$
\n" ); document.write( " $\"%28W%2B12%29%28W-9%29=0\"$
\n" ); document.write( "Two solutions but only one is positive.
\n" ); document.write( " $\"W-9=0\"$
\n" ); document.write( " $\"W=9\"$ $\"cm\"$
\n" ); document.write( "So then,
\n" ); document.write( " $\"L=108%2F9\"$
\n" ); document.write( " $\"L=12\"$ $\"cm\"$ \n" ); document.write( "

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