document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1001543>Question 1001543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The question is \"Ivan has 80 feet of fence to enclose a rectangular garden. What demensions for the garden give the maximum area?\" And I don't know how to solve it so help would be great!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #618668 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=618668\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The question is \"Ivan has 80 feet of fence to enclose a rectangular garden. What demensions for the garden give the maximum area?\" And I don't know how to solve it so help would be great! <BR>\n" );
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document.write( "Max area for a rectangle is a square.<BR>\n" );
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document.write( "P = 2L + 2W = 80<BR>\n" );
document.write( "L + W = 40<BR>\n" );
document.write( "L = 40 - W<BR>\n" );
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document.write( "Area = W*L = W*(40-W)<BR>\n" );
document.write( "Area = -W^2 + 40W<BR>\n" );
document.write( "The max is the vertex, at W = -b/2a<BR>\n" );
document.write( "W = -40/-2 = 20<BR>\n" );
document.write( "L = 20<BR>\n" );
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