document.write( "Question 1201440: A dog trainer has 68 ft of fencing that will be used to create a rectangular work area for dogs. If the trainer wants to enclose an area of 240 ft2, what will be the dimensions of the work area? \n" ); document.write( "
Algebra.Com's Answer #835816 by josgarithmetic(39628)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Dimensions w and L\r
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\n" ); document.write( "\n" ); document.write( "\"system%282w%2B2L=68%2Cand%2CwL=240%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"system%28w%2BL=34%2CwL=240%29\"\r
\n" ); document.write( "\n" ); document.write( "\"L=34-w\"
\n" ); document.write( "\"substitute\":
\n" ); document.write( "\"w%2834-w%29=240\"\r
\n" ); document.write( "\n" ); document.write( "\"w%5E2-34w=-240\"
\n" ); document.write( "\"w%5E2-34w%2B240=0\"\r
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\n" ); document.write( "\n" ); document.write( "discrim, \"%28-34%29%5E2-4%2A240\"
\n" ); document.write( "\"196\"
\n" ); document.write( "\"14%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"w=%2834%2B-+14%29%2F2\"
\n" ); document.write( "w=24,or,w=10\r
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