document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1112>Question 1112</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A pool measuring 10 meters by 20 meters is surrounded by a path of uniform width.  If the area of the pool and the path combined is 600 square meters, what is the width of the path?<BR>\n" );
document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #345 by </B><A HREF=/tutors/aboutme.mpl?userid=khwang><B>khwang(438)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=khwang><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=345\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Let the width of the path be x meters,the combined width and length would<BR>\n" );
document.write( " be 10+2x and 20+2x.<BR>\n" );
document.write( " So we have <BR>\n" );
document.write( " (10 + 2x) (20+2x) = 600,<BR>\n" );
document.write( " Divided both sides by 4:<BR>\n" );
document.write( " (x+5)(x + 10) = 150, <BR>\n" );
document.write( " Multiply out the left hand side and simplify:<BR>\n" );
document.write( " x^2+ 15 x -100 = 0, <BR>\n" );
document.write( " Factor:<BR>\n" );
document.write( " (x+20) (x-5) = 0<BR>\n" );
document.write( "  So, x = 5 or x = -20 (negative,invalid)\r<BR>\n" );
document.write( "\n" );
document.write( " Answer: 5 meters.     </SPAN>\n" );
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