document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=250839>Question 250839</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This is a simple algebra question: \"Find the dimensions of a rectangle whose perimeter is 42 m and whose area is 104 m (squared).\" </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #184437 by </B><A HREF=/tutors/aboutme.mpl?userid=drk><B>drk(1908)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=drk><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=184437\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> we need two formulas:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P+=+2L+%2B+2W ALIGN=MIDDLE  ALT=\"P+=+2L+%2B+2W\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+LW ALIGN=MIDDLE  ALT=\"A+=+LW\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "From our given information we have<BR>\n" );
document.write( "(i) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=42+=+2L+%2B+2W ALIGN=MIDDLE  ALT=\"42+=+2L+%2B+2W\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(ii) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=104+=+LW ALIGN=MIDDLE  ALT=\"104+=+LW\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solve equation (ii) for L.<BR>\n" );
document.write( "(iii) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L+=+104%2FW ALIGN=MIDDLE  ALT=\"L+=+104%2FW\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute (iii) information into (i) to get<BR>\n" );
document.write( "(iv) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=42+=+208%2FW+%2B+2W ALIGN=MIDDLE  ALT=\"42+=+208%2FW+%2B+2W\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "or<BR>\n" );
document.write( "(v) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21+=+104%2FW+%2B+W ALIGN=MIDDLE  ALT=\"21+=+104%2FW+%2B+W\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Now multiply both sides by W to get<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21W+=+104+%2B+W%5E2 ALIGN=MIDDLE  ALT=\"21W+=+104+%2B+W%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "set this equal to 0 and factor.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w%5E2+-+21W+%2B+104 ALIGN=MIDDLE  ALT=\"w%5E2+-+21W+%2B+104\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28W-13%29%28W-8%29+=+0 ALIGN=MIDDLE  ALT=\"%28W-13%29%28W-8%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "W = 13, W = 8.<BR>\n" );
document.write( "If W = 13m, then L = 8m.<BR>\n" );
document.write( "If W = 8m, then L = 13m.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );