document.write( "Question 405435: a rectangular lot whoes perimeter is 220 feet is fenced along three sides. an expensive fencing along the lots lenght cost 20$ per foot and the inexpensice fencing along the two side widths costs only 8$ per foot. the total cost of the fencing along the three sides comes to $2040. what are the lots dimensions?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #286337 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! a rectangular lot whose perimeter is 220 feet is fenced along three sides. an expensive fencing along the lots lenght cost 20$ per foot and the inexpensice fencing along the two side widths costs only 8$ per foot. the total cost of the fencing along the three sides comes to $2040. what are the lots dimensions?\r \n" ); document.write( "\n" ); document.write( ".. \n" ); document.write( "let W=width in feet \n" ); document.write( "let L=length in feet \n" ); document.write( "Then 2W+2L=220 \n" ); document.write( "or W+L=110 \n" ); document.write( "L=110-W \n" ); document.write( "Cost of 2 side widths=8*2W \n" ); document.write( "Cost of Length(one side)=20L=20(110-W) \n" ); document.write( "Total Cost=8*2W+20(110-W)=2040 \n" ); document.write( "16W+2200-20W=2040 \n" ); document.write( "-4W=2040-2200 \n" ); document.write( "4W=160 \n" ); document.write( "W=40 \n" ); document.write( "L=110-40=70 \n" ); document.write( ".. \n" ); document.write( "ans: \n" ); document.write( "The width of the lot=40 feet \n" ); document.write( "The length of the lot=70 feet\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |