document.write( "Question 1060933: the perimiter of a rectangle is 210 feet. the length is 10 feet longer than the width w. which equation can be used to calculate the length and the width of the playground \n" ); document.write( "

Algebra.Com's Answer #675764 by josmiceli(19441) $\"\"$ $\"About$

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The formula for perimeter of a rectangle , $\"+P+\"$ , is:
\n" ); document.write( " $\"+P+=+2L+%2B+2W+\"$
\n" ); document.write( " $\"+L+\"$ = length
\n" ); document.write( " $\"+W+\"$ = width
\n" ); document.write( "-----------------------
\n" ); document.write( "given:
\n" ); document.write( " $\"+P+=+210+\"$ ft
\n" ); document.write( " $\"+L+=+W+%2B+10+\"$
\n" ); document.write( "-----------------------
\n" ); document.write( " $\"+210+=+2L+%2B+2W+\"$
\n" ); document.write( " $\"+210+=+2%2A%28+W+%2B+10+%29+%2B+2W+\"$ ( this is the required equation )
\n" ); document.write( "-------------------------------
\n" ); document.write( "solution:
\n" ); document.write( " $\"+210+=+2W+%2B+20+%2B+2W+\"$
\n" ); document.write( " $\"+4W+=+190+\"$
\n" ); document.write( " $\"+W+=+47.5+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+L+=+W+%2B+10+\"$
\n" ); document.write( " $\"+L+=+47.5+%2B+10+\"$
\n" ); document.write( " $\"+L+=+57.5+\"$
\n" ); document.write( "--------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+210+=+2L+%2B+2W+\"$
\n" ); document.write( " $\"+210+=+2%2A57.5+%2B+2%2A47.5+\"$
\n" ); document.write( " $\"+210+=+115+%2B+95+\"$
\n" ); document.write( " $\"+210+=+210+\"$
\n" ); document.write( "OK\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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