document.write( "Question 677053: the length of a ping pong table is 63 inches more than it's width it's perimeter is 312 inches find the length and width \n" ); document.write( "

Algebra.Com's Answer #420655 by rm29924(97) $\"\"$ $\"About$

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a ping pong table is a rectangle
\n" ); document.write( "the perimeter of a rectangle is perimeter=2(length)+2(width)
\n" ); document.write( "perimeter = 312 inches
\n" ); document.write( "let W=width
\n" ); document.write( "length=W+63
\n" ); document.write( "312=2(W+63)+2W
\n" ); document.write( "312=2W+126+2w
\n" ); document.write( "312=4W+126
\n" ); document.write( "subtract 126 from both sides
\n" ); document.write( "186=4W
\n" ); document.write( "divide both sides by 4 to get W by itself
\n" ); document.write( "W=46.5 inches
\n" ); document.write( "length = W +63
\n" ); document.write( "length=109.5 inches\r
\n" ); document.write( "\n" ); document.write( "answer: width=46.5 inches and length=109.5 inches\r
\n" ); document.write( "\n" ); document.write( "plug the answers back into the equation to check work:
\n" ); document.write( "312=2(W+63)+2W
\n" ); document.write( "312=2(46.5+63)+2(46.5)
\n" ); document.write( "312=219+93
\n" ); document.write( "312=312\r
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