document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=104677>Question 104677</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rectangular garden is to be surrounded by a walkway of constant width.  The garden's dimensions are 30 ft by 40 ft.  The total area, garden plus walkway, is to be 1800 ft2.  What must be the width of the walkway to the nearest thousandth? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #76174 by </B><A HREF=/tutors/aboutme.mpl?userid=HyperBrain><B>HyperBrain(694)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=HyperBrain><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=76174\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Area=length*width<BR>\n" );
document.write( "____=30ft*40ft<BR>\n" );
document.write( "____=1200 sq. ft\r<BR>\n" );
document.write( "\n" );
document.write( "Let x= the width of the walkway\r<BR>\n" );
document.write( "\n" );
document.write( "Then, the new length of the whole space is 40+2x and the new width is 30+2x\r<BR>\n" );
document.write( "\n" );
document.write( "The total area, garden plus walkway, is to be 1800 sq. ft. So,\r<BR>\n" );
document.write( "\n" );
document.write( "__________________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2840%2B2x%29%2A%2830%2B2x%29=1800 ALIGN=MIDDLE  ALT=\"%2840%2B2x%29%2A%2830%2B2x%29=1800\"   DISABLED_style= \"max-width:90%; height:auto;\" >____________________________<BR>\n" );
document.write( "____________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40%2A%2830%2B2x%29%2B2x%2A%2830%2B2x%29=1800 ALIGN=MIDDLE  ALT=\"40%2A%2830%2B2x%29%2B2x%2A%2830%2B2x%29=1800\"   DISABLED_style= \"max-width:90%; height:auto;\" >____________________________<BR>\n" );
document.write( "____________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281200%2B80x%29%2B%2860x%2B4x%5E2%29=1800 ALIGN=MIDDLE  ALT=\"%281200%2B80x%29%2B%2860x%2B4x%5E2%29=1800\"   DISABLED_style= \"max-width:90%; height:auto;\" >____________________________<BR>\n" );
document.write( "______________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1200%2B%2880x%2B60x%29%2B4x%5E2=1800 ALIGN=MIDDLE  ALT=\"1200%2B%2880x%2B60x%29%2B4x%5E2=1800\"   DISABLED_style= \"max-width:90%; height:auto;\" >____________________________<BR>\n" );
document.write( "______________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1200%2B140x%2B4x%5E2-1800=1800-1800 ALIGN=MIDDLE  ALT=\"1200%2B140x%2B4x%5E2-1800=1800-1800\"   DISABLED_style= \"max-width:90%; height:auto;\" >_______________________<BR>\n" );
document.write( "__________________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-600%2B140x%2B4x%5E2=0 ALIGN=MIDDLE  ALT=\"-600%2B140x%2B4x%5E2=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >________________________________<BR>\n" );
document.write( "___________________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%5E2%2B140x-600=0 ALIGN=MIDDLE  ALT=\"4x%5E2%2B140x-600=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >________________________________<BR>\n" );
document.write( "_______________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F4%29%2A%284x%5E2%2B140x-600%29=%281%2F4%29%2A0 ALIGN=MIDDLE  ALT=\"%281%2F4%29%2A%284x%5E2%2B140x-600%29=%281%2F4%29%2A0\"   DISABLED_style= \"max-width:90%; height:auto;\" >______________________<BR>\n" );
document.write( "_____________________________<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B35x-150=0 ALIGN=MIDDLE  ALT=\"x%5E2%2B35x-150=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >________________________________\r<BR>\n" );
document.write( "\n" );
document.write( "By the quadratic formula,\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-35%2B-sqrt%2835%5E2-4%2A1%2A%28-150%29%29%29%2F%282%2A1%29 ALIGN=MIDDLE  ALT=\"x=%28-35%2B-sqrt%2835%5E2-4%2A1%2A%28-150%29%29%29%2F%282%2A1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-35%2B-sqrt%281225%2B600%29%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x=%28-35%2B-sqrt%281225%2B600%29%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-35%2B-sqrt%281825%29%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x=%28-35%2B-sqrt%281825%29%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-35%2B42.72%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x=%28-35%2B42.72%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-35-42.72%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x=%28-35-42.72%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=3.85 ALIGN=MIDDLE  ALT=\"x=3.85\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-38.6 ALIGN=MIDDLE  ALT=\"x=-38.6\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "The negative result will not be ACCEPTED for there's no such things such as NEGATIVE LENGTH!\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Therefore, the length must be 3.85 ft wide!\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Power up,<BR>\n" );
document.write( "HyperBrain! </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );