document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=411542>Question 411542</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rectangular grass lawn, 45 m long and 38 m wide, has a uniform concrete path around it. If the area of the concrete path is 440 m^2, find the width of the concrete path.\r<BR>\n" );
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document.write( "PLEASE HELP!!! i need your solutions :( </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #289283 by </B><A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><B>sudhanshu_kmr(1152)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><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=sudhanshu_kmr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=289283\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Let the width of the concrete path is x meter.\r<BR>\n" );
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document.write( "now, for whole area including path and lawn :\r<BR>\n" );
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document.write( "length = 45 + 2x\r<BR>\n" );
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document.write( "width = 38 + 2x\r<BR>\n" );
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document.write( "area of concrete path = whole area - lawn area\r<BR>\n" );
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document.write( "= (45+2x)*(38+2x) - 45*38\r<BR>\n" );
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document.write( "= 90x + 76x + 4x^2 \r<BR>\n" );
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document.write( "according to question , \r<BR>\n" );
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document.write( " 90x + 76x + 4x^2 = 440 \r<BR>\n" );
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document.write( "=> 4x^2 + 166x - 440 = 0 \r<BR>\n" );
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document.write( "=>  2x^2 + 83x - 220 = 0\r<BR>\n" );
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document.write( "=>   2x^2 + 88x - 5x  - 220 = 0\r<BR>\n" );
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document.write( "=> 2x(x+44) - 5(x+44) = 0\r<BR>\n" );
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document.write( "=> (2x-5)(x+44)=0\r<BR>\n" );
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document.write( "so, x = 5/2 , -44 \r<BR>\n" );
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document.write( "second value is not possible, \r<BR>\n" );
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document.write( "width of path = 5/2 m = 2.5 m\r<BR>\n" );
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document.write( " </SPAN>\n" );
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