document.write( "Question 105789: I have a rectangular swimming pool that is 3 times as long as it is wide. Around the pool is a deck that is 2.5 meters wide and the area of the deck is 265 meters^2. How do I figure out the dimensions of the pool? \n" ); document.write( "
Algebra.Com's Answer #76987 by edjones(8007)\"\" \"About 
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L=3w
\n" ); document.write( "(L+5)*(w+5)-(L*w)=265
\n" ); document.write( "(3w+5)*(w+5)-3w*w=265
\n" ); document.write( "3w^2+20w+25-3w^2=265
\n" ); document.write( "20w+25=265
\n" ); document.write( "20w=240
\n" ); document.write( "w=12
\n" ); document.write( "L=36
\n" ); document.write( "Ed\r
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