document.write( "Question 941960: The length of the parking lot is 20 yd longer than the width. The perimeter is 360 yd. Write and solve an equation to find the width of the parking lot. Could you help?? \n" ); document.write( "

Algebra.Com's Answer #574194 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+P+\"$ = the perimeter in yds
\n" ); document.write( "It is assumed that the parking lot is a rectangle
\n" ); document.write( "The formula for perimeter is:
\n" ); document.write( " $\"+P+=+2W+%2B+2W+\"$
\n" ); document.write( " $\"+360+=+2W+%2B+2L+\"$
\n" ); document.write( "--------------------
\n" ); document.write( " $\"+L+=+W+%2B+20+\"$
\n" ); document.write( "Substitute this into the formula for perimeter
\n" ); document.write( " $\"+360+=+2w+%2B+2%2A%28+W+%2B+20+%29+\"$
\n" ); document.write( " $\"+360+=+2W+%2B+2W+%2B+40+\"$
\n" ); document.write( " $\"+4W+=+320+\"$
\n" ); document.write( " $\"+W+=+80+\"$
\n" ); document.write( "The width is 80 yds
\n" ); document.write( "--------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+L+=+W+=+20+%5D%5D%5D%0D%0A%5B%5B%5B+L+=+80+%2B+20+\"$
\n" ); document.write( " $\"+L+=+100+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+360+=+2W+%2B+2L+\"$
\n" ); document.write( " $\"+360+=+2%2A80+%2B+2%2A100+\"$
\n" ); document.write( " $\"+360+=+160+%2B+200+\"$
\n" ); document.write( " $\"+360+=+360+\"$
\n" ); document.write( "OK\r
\n" ); document.write( "
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