document.write( "Question 20885: The length of a rectangle is 3 more than twice the width. If the perimeter is 126 inches, find the width of the rectangle. \n" ); document.write( "

Algebra.Com's Answer #10046 by algebrapro18(249) $\"\"$ $\"About$

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since perimater of a rectangle is p=2L+2w we just plug in to that and get
\r
\n" ); document.write( "\n" ); document.write( "P=2L+2w where p=126 l=3+2w w=w
\n" ); document.write( "126=2(3+2w)+2w
\n" ); document.write( "126=6+4w+2w
\n" ); document.write( "126=6+6w
\n" ); document.write( "120=6w
\n" ); document.write( "20=w
\r
\n" ); document.write( "\n" ); document.write( "so the width = 20 inches \n" ); document.write( "

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