document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=574463>Question 574463</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rectangular lot uses 260 feet of fencing and uses a wall as one side. An expensive fencing along the lot's length costs $2o per foot and an inexpensive fencing along the two side widths cost only $8 per foot. The total cost of the fencing along the three sides comes to $3280. What are the lot's dimention (length and width).? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #369124 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=369124\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> rectangular lot uses 260 feet of fencing and uses a wall as one side.<BR>\n" );
document.write( " An expensive fencing along the lot's length costs $2o per foot and<BR>\n" );
document.write( " an inexpensive fencing along the two side widths cost only $8 per foot.<BR>\n" );
document.write( " The total cost of the fencing along the three sides comes to $3280.<BR>\n" );
document.write( " What are the lot's dimensions (length and width)?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Only 3 sides, therefore:<BR>\n" );
document.write( "L + 2W = 260<BR>\n" );
document.write( "L = (260-2W)\r<BR>\n" );
document.write( "\n" );
document.write( ":<BR>\n" );
document.write( "Total cost<BR>\n" );
document.write( "20L + 8(2W) = 3280<BR>\n" );
document.write( "20L + 16W = 3280<BR>\n" );
document.write( "Simplify, divide by 4<BR>\n" );
document.write( "5L + 4W = 820<BR>\n" );
document.write( "Replace L with (260-2W)<BR>\n" );
document.write( "5(260-2W) + 4W = 820<BR>\n" );
document.write( "1300 - 10W + 4W = 820<BR>\n" );
document.write( "-6W = 820 - 1300<BR>\n" );
document.write( "-6W = -480<BR>\n" );
document.write( "W = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-480%29%2F%28-6%29 ALIGN=MIDDLE  ALT=\"%28-480%29%2F%28-6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "W = +80 ft is the width<BR>\n" );
document.write( "then<BR>\n" );
document.write( "L = 260 - 2(80)<BR>\n" );
document.write( "L = 100 ft is the length<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check this by finding the cost:<BR>\n" );
document.write( "20(100) = 2000<BR>\n" );
document.write( "8(2*80) = 1280<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "totals: 3280 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );