document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=978889>Question 978889</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a rectangular garden is 30 feet by 40 feet long.A walk of uniform with that surrounds it has an area of 280 square feet.Find the width of the walk </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #600228 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=600228\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x, width<BR>\n" );
document.write( "y, length<BR>\n" );
document.write( "u, uniform width of the walk path around the rectangular garden<BR>\n" );
document.write( "A, the area of the walk path around the garden<BR>\n" );
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document.write( "u is unknown<BR>\n" );
document.write( "y=30<BR>\n" );
document.write( "x=40<BR>\n" );
document.write( "A=280\r<BR>\n" );
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document.write( "Garden area, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=xy ALIGN=MIDDLE  ALT=\"xy\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Combined walkway and garden area, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B2u%29%28y%2B2u%29 ALIGN=MIDDLE  ALT=\"%28x%2B2u%29%28y%2B2u%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Walkway area only, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28%28x%2B2u%29%28y%2B2u%29-xy=A%29 ALIGN=MIDDLE  ALT=\"highlight_green%28%28x%2B2u%29%28y%2B2u%29-xy=A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "\"Find the width of the walk.\"<BR>\n" );
document.write( "The only unknown variable in the green-outlined equation is u.  That is what the question<BR>\n" );
document.write( "asks to find.  Work with THAT equation to solve for u.  Try to go as far as possible completely<BR>\n" );
document.write( "in symbols before subsituting the given values.\r<BR>\n" );
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document.write( "---partway through the process,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2uy%2B2xu%2B4u%5E2-A=0 ALIGN=MIDDLE  ALT=\"2uy%2B2xu%2B4u%5E2-A=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4u%5E2%2B%282x%2B2y%29u-A=0 ALIGN=MIDDLE  ALT=\"4u%5E2%2B%282x%2B2y%29u-A=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
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