document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=568196>Question 568196</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a pool is to be 30 feet wide and 90 feet long. A walkway is to be built around the entire pool. if the combined area cannot exceed 4000 square feet what are the possible widths of the walkway?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #366863 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=366863\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Area of pool = 30* 90 = 2700 ft^2  ( rectangle)\r<BR>\n" );
document.write( "\n" );
document.write( "Area of pool + walkway = 4000 ft^2\r<BR>\n" );
document.write( "\n" );
document.write( "area of walkway = 1300 ft^2\r<BR>\n" );
document.write( "\n" );
document.write( "let the width of walk way be x\r<BR>\n" );
document.write( "\n" );
document.write( "(30+2x)(90+2x)=4000\r<BR>\n" );
document.write( "\n" );
document.write( "2700+60x+180x+4x^2=4000\r<BR>\n" );
document.write( "\n" );
document.write( "4x^2+240x+2700=4000\r<BR>\n" );
document.write( "\n" );
document.write( "/4<BR>\n" );
document.write( "x^2+60x+675=1000\r<BR>\n" );
document.write( "\n" );
document.write( "x^2+60x-325=0\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "x^2+65x-5x-325=0<BR>\n" );
document.write( "x(x+65)-5(x+650=0<BR>\n" );
document.write( "(x+65)(x-5)=0\r<BR>\n" );
document.write( "\n" );
document.write( "x= 5 m\r<BR>\n" );
document.write( "\n" );
document.write( "The width has to be less than 5 m<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );