document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1105764>Question 1105764</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Michelle has 18m of fencing to make a rectangular enclosure for her dog.\r<BR>\n" );
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document.write( "Use variables A for area and W for width to write an algebraic model that represents the relation </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #720657 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=720657\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If W is width, the length of the rectangular region is in variable L in equation  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2W%2B2L=18 ALIGN=MIDDLE  ALT=\"2W%2B2L=18\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and area is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=WL ALIGN=MIDDLE  ALT=\"A=WL\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "From the perimeter,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=W%2BL=9 ALIGN=MIDDLE  ALT=\"W%2BL=9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L=9-W ALIGN=MIDDLE  ALT=\"L=9-W\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Substituting into A equation,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=W%289-W%29 ALIGN=MIDDLE  ALT=\"A=W%289-W%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28A=W%289-W%29%2Cor%2CA=-W%5E2%2B9W%29 ALIGN=MIDDLE  ALT=\"system%28A=W%289-W%29%2Cor%2CA=-W%5E2%2B9W%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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