document.write( "Question 810724: A fence is to be built to enclose a rectangular area of 220 square feet. The fence along three sides is to be made of material that costs 6 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the length L and width W (with W \leq L) of the enclosure that is most economical to construct. \n" ); document.write( "
Algebra.Com's Answer #488428 by josgarithmetic(39621)\"\" \"About 
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The shorter measurement side should use the more expensive fence material. Let \"w%3CL\" and the dimensions are w and L.\r
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\n" ); document.write( "\n" ); document.write( "\"2w%2B2L=220\" and \"14%2Aw%2B6%2Aw%2B2%2AL%2A6=c\", where c = cost.\r
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\n" ); document.write( "\n" ); document.write( "Simplify the c equation.
\n" ); document.write( "\"%2814%2B6%29w%2B12L=c\"
\n" ); document.write( "\"c=20w%2B12L\"\r
\n" ); document.write( "\n" ); document.write( "Solve the perimeter equation for either variable.
\n" ); document.write( "w+L=110
\n" ); document.write( "L=110-w
\n" ); document.write( "Substitute into the c equation.
\n" ); document.write( "\"c=20w%2B12%28110-w%29\"
\n" ); document.write( "\"c=20w%2B12%2A110-12w\"
\n" ); document.write( "\"c=8w%2B1320\"\r
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\n" ); document.write( "\n" ); document.write( "The description of the problem is missing something.
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