document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1122930>Question 1122930</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Paula plans to replace the vinyl floor covering her 10-ft by 12-ft kitchen. She wants to have a border of even width of a special material. She can afford only 21 ft^2<BR>\n" );
document.write( " of this material. How wide a border can she have?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #739111 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=739111\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Draw this.<BR>\n" );
document.write( "let the border=x<BR>\n" );
document.write( "the covering will be 10-2x by 12-2x, because the border affects both sides.  <BR>\n" );
document.write( "that area is 21 ft^2,<BR>\n" );
document.write( "so 120-44x+4x^2=21<BR>\n" );
document.write( "4x^2-44x+99=0<BR>\n" );
document.write( "x=(1/8)(44+/- sqrt (1936-1584)); sqrt term is 18.76<BR>\n" );
document.write( "x=25.24/8 the other x would be nearly 8 and wouldn't work.<BR>\n" );
document.write( "x=3.155 feet border, 6.310 feet taken from both sides.<BR>\n" );
document.write( "the floor would be 10-6.310 or3.69 by 12-6.310 or 5.69<BR>\n" );
document.write( "3.69*5.69=20.9961<BR>\n" );
document.write( "The answer is 3.155 feet. </SPAN>\n" );
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