document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=915688>Question 915688</A>: <I><SPAN STYLE=\"word-break: break-all;\"> John has a swimming pool that is 30 feet by 40 feet. He wants to plant a strip of grass of uniform width around the pool. He has enough seed to cover 144 square feet. How wide should the strip be? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #555704 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=555704\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let w be the uniform width of the grass strip.\r<BR>\n" );
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document.write( "Pool area,  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30%2A40 ALIGN=MIDDLE  ALT=\"30%2A40\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Combined area pool and grass strip, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2830%2B2w%29%2840%2B2w%29 ALIGN=MIDDLE  ALT=\"%2830%2B2w%29%2840%2B2w%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Grass strip area, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=144 ALIGN=MIDDLE  ALT=\"144\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CombinedArea-PoolArea=GrassStripArea=144 ALIGN=MIDDLE  ALT=\"CombinedArea-PoolArea=GrassStripArea=144\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28%2830%2B2w%29%2840%2B2w%29-30%2A40=144%29 ALIGN=MIDDLE  ALT=\"highlight_green%28%2830%2B2w%29%2840%2B2w%29-30%2A40=144%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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