document.write( "Question 959091: find the length l of a rectangular lot if the width w is 40 feet and the perimeter P is 280 feet.
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Algebra.Com's Answer #586283 by Fombitz(32388) $\"\"$ $\"About$

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For a rectangle,
\n" ); document.write( " $\"P=2l%2B2w\"$
\n" ); document.write( " $\"2l%2B2%2840%29=280\"$
\n" ); document.write( " $\"2l=200\"$
\n" ); document.write( " $\"l=100\"$ $\"feet\"$ \n" ); document.write( "

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