document.write( "Question 864642: A rectangular swimming pool is twice as long as it is wide. A small sidewalk surrounds the pool. The walkway is a constant 2ft wide and has an area of 196 square feet. Find the dimensions of the pool.
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Algebra.Com's Answer #521142 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
I can call the width of the pool $\"+w+%7D%7D+and%0D%0Athe+length+%7B%7B%7B+2w+\"$
\n" ); document.write( "The walkway adds $\"+2+\"$ ft to each side, so
\n" ); document.write( " $\"+%28+w+%2B+2+%2B+2+%29%2A%28+2w+%2B+2+%2B+2+%29+=+w%2A2w+%2B+196+\"$
\n" ); document.write( " $\"+%28+w+%2B+4+%29%2A%28+2w+%2B+4+%29+=+2w%5E2+%2B+196+\"$
\n" ); document.write( " $\"+2w%5E2+%2B+8w+%2B+4w+%2B+16+=+2w%5E2+%2B+196+\"$
\n" ); document.write( " $\"+12w+%2B+16+=+196+\"$
\n" ); document.write( " $\"+12w+=+180+\"$
\n" ); document.write( " $\"+w+=+15+\"$
\n" ); document.write( " $\"+2w+=+30+\"$
\n" ); document.write( "The dimensions of the pool are 15 ft x 30 ft
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\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+w+%2B+2+%2B+2+%29%2A%28+2w+%2B+2+%2B+2+%29+=+w%2A2w+%2B+196+\"$
\n" ); document.write( " $\"+%28+15+%2B+2+%2B+2+%29%2A%28+30+%2B+2+%2B+2+%29+=+450+%2B+196+\"$
\n" ); document.write( " $\"+19%2A34+=+646+\"$
\n" ); document.write( " $\"+646+=+646+\"$
\n" ); document.write( "OK \n" ); document.write( "

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