document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1141591>Question 1141591</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Brady wants to buy a rug for a room that is 10 ft wide and 15 ft long. He wants to leave a uniform strip of floor around the rug. He can afford to buy 100 ft2<BR>\n" );
document.write( ". How wide of a border can he have? (The area in gray is 100 ft2). You will need to use the quadratic formula. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #762163 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=762163\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The rug + the border must fit in the 10 x 15 room<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+A+ ALIGN=MIDDLE  ALT=\"+A+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the area of the rug<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+ ALIGN=MIDDLE  ALT=\"+x+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the width of the border<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+A+=+%28+10+-+2x+%29%2A%28+15+-+2x+%29+ ALIGN=MIDDLE  ALT=\"+A+=+%28+10+-+2x+%29%2A%28+15+-+2x+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+A+=+150+-+30x+-+20x+%2B+4x%5E2+ ALIGN=MIDDLE  ALT=\"+A+=+150+-+30x+-+20x+%2B+4x%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+A+=+4x%5E2+-+50x+%2B+150+ ALIGN=MIDDLE  ALT=\"+A+=+4x%5E2+-+50x+%2B+150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+A+=+100+ ALIGN=MIDDLE  ALT=\"+A+=+100+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ft2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100+=+4x%5E2+-+50x+%2B+150+ ALIGN=MIDDLE  ALT=\"+100+=+4x%5E2+-+50x+%2B+150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4x%5E2+-+50x+%2B+50+=+0+ ALIGN=MIDDLE  ALT=\"+4x%5E2+-+50x+%2B+50+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2x%5E2+-+25x+%2B+25+=+0+ ALIGN=MIDDLE  ALT=\"+2x%5E2+-+25x+%2B+25+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+2+ ALIGN=MIDDLE  ALT=\"+a+=+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+-25+ ALIGN=MIDDLE  ALT=\"+b+=+-25+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+c+=+25+ ALIGN=MIDDLE  ALT=\"+c+=+25+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28-%28-25%29+%2B-+sqrt%28+625+-+4%2A2%2A25+%29%29%2F4+ ALIGN=MIDDLE  ALT=\"+x+=+%28-%28-25%29+%2B-+sqrt%28+625+-+4%2A2%2A25+%29%29%2F4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+25+%2B-sqrt%28+625+-+200+%29%29%2F4+ ALIGN=MIDDLE  ALT=\"+x+=+%28+25+%2B-sqrt%28+625+-+200+%29%29%2F4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+25+-+sqrt%28+425+%29%29%2F4+ ALIGN=MIDDLE  ALT=\"+x+=+%28+25+-+sqrt%28+425+%29%29%2F4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+25+-+20.6155+%29%2F4+ ALIGN=MIDDLE  ALT=\"+x+=+%28+25+-+20.6155+%29%2F4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+4.3845%2F4+ ALIGN=MIDDLE  ALT=\"+x+=+4.3845%2F4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+1.0961+ ALIGN=MIDDLE  ALT=\"+x+=+1.0961+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ft is the minimum width of the border<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+A+=+%28+10+-+2x+%29%2A%28+15+-+2x+%29+ ALIGN=MIDDLE  ALT=\"+A+=+%28+10+-+2x+%29%2A%28+15+-+2x+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100+=+%28+10+-+2x+%29%2A%28+15+-+2x+%29+ ALIGN=MIDDLE  ALT=\"+100+=+%28+10+-+2x+%29%2A%28+15+-+2x+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100+=+%28+10+-+2%2A1.0961+%29%2A%28+15+-+2%2A1.0961+%29+ ALIGN=MIDDLE  ALT=\"+100+=+%28+10+-+2%2A1.0961+%29%2A%28+15+-+2%2A1.0961+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100+=+%28+10+-+2.1922+%29%2A%28+15+-+2.1922+%29+ ALIGN=MIDDLE  ALT=\"+100+=+%28+10+-+2.1922+%29%2A%28+15+-+2.1922+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100+=+7.8078%2A12.8078+ ALIGN=MIDDLE  ALT=\"+100+=+7.8078%2A12.8078+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100+=+100.00074+ ALIGN=MIDDLE  ALT=\"+100+=+100.00074+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "error due to rounding off<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "get a 2nd opinion if needed\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );