document.write( "Question 551327: Perimeter of rectangle is 90 length is 6x and width is 2x. What is the length of the longest side \n" ); document.write( "

Algebra.Com's Answer #359642 by Earlsdon(6294) $\"\"$ $\"About$

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For a rectangle, the perimeter, P, is given by:
\n" ); document.write( " $\"P+=+2%28L%2BW%29\"$ Substitute $\"L+=+6x\"$ , $\"W+=+2x\"$ , and $\"P+=+90\"$
\n" ); document.write( " $\"90+=+2%286x%2B2x%29\"$ Simplify.
\n" ); document.write( " $\"90+=+16x\"$
\n" ); document.write( " $\"x+=+5.26\"$
\n" ); document.write( "The longest side is 6x, so...
\n" ); document.write( " $\"6x+=+33.75\"$
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