document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=353562>Question 353562</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rectangular pool of 20 m wide and 60 m long is surrounded by a walkway of uniform width. If the  total area of the walkway is 516 square meters , how wide, in meters, is the walkway? \r<BR>\n" );
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document.write( "a. 43 m   b. 3 m   c. 3 m  d. 3.5 m <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #252610 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=252610\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi,<BR>\n" );
document.write( "*NOte: consider let x be the width of the walkway. Then the dimensions of the rectangle formed by the pool and the walkway are (20 + 2x) and (60 + 2x) <BR>\n" );
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document.write( "Area of rectangle formed by the pool and the walkway<BR>\n" );
document.write( "1200 m^2 + 516 m^2 = 1716m^2<BR>\n" );
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document.write( "(20 + 2x)(60 + 2x) = 1716m^2<BR>\n" );
document.write( "1200 + 160x + 4x^2 = 1716m^2<BR>\n" );
document.write( "x^2 + 40x - 129 = 0<BR>\n" );
document.write( "(x + 43)(x-3) = 0<BR>\n" );
document.write( "x = 3m<BR>\n" );
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document.write( "check your answer<BR>\n" );
document.write( "26m*66m = 1716m^2 </SPAN>\n" );
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