document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=316794>Question 316794</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a pool measuring 20 meters by 30 meters is surrounded by a path of uniform width. If the area of the pool and the path combined is 1344 square meters, what is the width of the path? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #226949 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=226949\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 20*30=600 area of the pool.<BR>\n" );
document.write( "(20+2x)(30+2x)=1,344<BR>\n" );
document.write( "600+60x+40x+100=1,344<BR>\n" );
document.write( "4x^2+100x+600-1,344=0<BR>\n" );
document.write( "4x^2+100x-744=0<BR>\n" );
document.write( "4(x^2+25x-186)=0<BR>\n" );
document.write( "4(x-6)(x+31)=0<BR>\n" );
document.write( "x-6=0<BR>\n" );
document.write( "x=6 width of the path.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "(20+2*6)(30+2*6)=1,344<BR>\n" );
document.write( "32*42=1,344<BR>\n" );
document.write( "1,344=1,344\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );