document.write( "Question 108524: The perimeter of a rectangle is 78 meters. The length of the rectangle is 11 meters longer than triple the width. Find the dimensions of the rectangle \n" ); document.write( "

Algebra.Com's Answer #79146 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"P=2W%2B2L=78\"$ Perimeter of a rectangle using length and width.
\n" ); document.write( "2. $\"L=11%2B3W\"$ Relationship between L and W.
\n" ); document.write( "Substitute in 1 for L using 2.
\n" ); document.write( "1. $\"2W%2B2L=78\"$
\n" ); document.write( " $\"2W%2B2%2811%2B3W%29=78\"$
\n" ); document.write( " $\"2W%2B22%2B6W=78\"$
\n" ); document.write( " $\"8W%2B22=78\"$
\n" ); document.write( " $\"8W=56\"$
\n" ); document.write( " $\"highlight%28W=7%29\"$
\n" ); document.write( "2. $\"L=11%2B3W\"$
\n" ); document.write( " $\"L=11%2B3%287%29\"$
\n" ); document.write( " $\"L=11%2B21\"$
\n" ); document.write( " $\"highlight%28L=32%29\"$
\n" ); document.write( "Check your answer using 1.
\n" ); document.write( " $\"2W%2B2L=78\"$
\n" ); document.write( " $\"2%287%29%2B2%2832%29=78\"$
\n" ); document.write( " $\"14%2B64=78\"$
\n" ); document.write( " $\"78=78\"$
\n" ); document.write( "True statement.
\n" ); document.write( "Good answers. \n" ); document.write( "

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