document.write( "Question 201098: You decide to tile your kitchen with tile. The width of the room is 5 feet shorter than the length. If you have to buy 360 one square foot tiles to cover the room, what are the dimensions of the kitchen? \n" ); document.write( "

Algebra.Com's Answer #151338 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"w\"$ = width
\n" ); document.write( " $\"w+%2B+5\"$ = length
\n" ); document.write( " $\"w%2A%28w+%2B+5%29+=+360\"$
\n" ); document.write( " $\"w%5E2+%2B+5w+-+360+=+0\"$
\n" ); document.write( " $\"w+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"a+=+1\"$
\n" ); document.write( " $\"b+=+5\"$
\n" ); document.write( " $\"c+=+-360\"$
\n" ); document.write( " $\"w+=+%28-5+%2B-+sqrt%28+5%5E2-4%2A1%2A%28-360%29+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( " $\"w+=+%28-5+%2B-+sqrt%28+25+%2B+1440+%29%29%2F2+\"$
\n" ); document.write( " $\"w+=+%28-5+%2B-+38.275%29%2F2+\"$
\n" ); document.write( " $\"w+=+33.275%2F2\"$
\n" ); document.write( " $\"w+=+16.638\"$
\n" ); document.write( " $\"w+%2B+5+=+21.638\"$
\n" ); document.write( "The room is 16.638' x 21.638'
\n" ); document.write( "check:
\n" ); document.write( " $\"w%2A%28w+%2B+5%29+=+360\"$
\n" ); document.write( " $\"16.638%2A21.638+=+359.994\"$ close enough\r
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