document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=550219>Question 550219</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a rectangular building is 15m long by 11m wide.<BR>\n" );
document.write( "a concrete path of constant width is laid all the way around the building.<BR>\n" );
document.write( "if the area of the path is 60.0m2, calculate the width. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #358653 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=358653\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the width of sidewalk be x 															<BR>\n" );
document.write( "..															<BR>\n" );
document.write( "Length of garden =			15												<BR>\n" );
document.write( "Width =			11												<BR>\n" );
document.write( "															<BR>\n" );
document.write( "Area =			165		M^2										<BR>\n" );
document.write( "Area of sidewalk =			60	M^2											<BR>\n" );
document.write( "Length of ground + sidewalk =							15	+	2	x					<BR>\n" );
document.write( "width of ground + sidewalk = 				12+2x											<BR>\n" );
document.write( "															<BR>\n" );
document.write( "(15+2x	)(11+2x)-60=165<BR>\n" );
document.write( "															\r<BR>\n" );
document.write( "\n" );
document.write( "165+30x	+22x+4x^2-60=	165<BR>\n" );
document.write( "4X^2+52	x-60=0					<BR>\n" );
document.write( "Find the roots of the equation by quadratic formula														<BR>\n" );
document.write( "	a=	4	b=	52	c=	-60									<BR>\n" );
document.write( "	b^2-4ac=	2704	+	960											<BR>\n" );
document.write( "	b^2-4ac=3664	<BR>\n" );
document.write( "	<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%093664%09%29 ALIGN=MIDDLE  ALT=\"sqrt%28%093664%09%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=	60.53							<BR>\n" );
document.write( "	<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >														<BR>\n" );
document.write( "	<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >														<BR>\n" );
document.write( "	x1=(	-52	+	60.53	)/	8									<BR>\n" );
document.write( "	x1=	1.07													<BR>\n" );
document.write( "	x2=(	-52	-60.53	) /	8										<BR>\n" );
document.write( "	x2= 	-14.07													<BR>\n" );
document.write( "	Ignore negative value														<BR>\n" );
document.write( "width = 1.07 m </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );