document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=866261>Question 866261</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the lenght of a rectangle is 3 times its width , the area is 12 square miles , what is the perimeter in miles ?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #522205 by </B><A HREF=/tutors/aboutme.mpl?userid=Seutip><B>Seutip(231)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Seutip><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=Seutip><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=522205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let:\r<BR>\n" );
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document.write( "x   - be the width<BR>\n" );
document.write( "3x  - be the length\r<BR>\n" );
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document.write( "Since the area is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12mi%5E2 ALIGN=MIDDLE  ALT=\"12mi%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, which is solved using the formula <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;\" >\r<BR>\n" );
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document.write( "It means:\r<BR>\n" );
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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( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12=%28x%29%283x%29 ALIGN=MIDDLE  ALT=\"12=%28x%29%283x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12=3x%5E2 ALIGN=MIDDLE  ALT=\"12=3x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4=x%5E2 ALIGN=MIDDLE  ALT=\"4=x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt4=sqrt%28x%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt4=sqrt%28x%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=2 ALIGN=MIDDLE  ALT=\"x=2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The width is 2 mi and the length is 6 mi.\r<BR>\n" );
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document.write( "The perimeter therefore,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=2l%2B2w ALIGN=MIDDLE  ALT=\"P=2l%2B2w\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=2%286%29%2B2%282%29 ALIGN=MIDDLE  ALT=\"P=2%286%29%2B2%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=16mi ALIGN=MIDDLE  ALT=\"P=16mi\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Hope that helps!\r<BR>\n" );
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document.write( " </SPAN>\n" );
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