document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1194635>Question 1194635</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A resort's enormous rectangular pool is 500 meters wide and 250 meters long. A contractor is<BR>\n" );
document.write( "hired to construct a brick walkway around the pool with an area of 1504 m^2?. What are the roots<BR>\n" );
document.write( "of the working equation? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #826878 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=826878\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "A resort's enormous rectangular pool is 500 meters wide and 250 meters long. <BR>\n" );
document.write( "A contractor is hired to construct a brick walkway around the pool with an area of 1504 m^2.<BR>\n" );
document.write( "What are the roots of the working equation?<BR>\n" );
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document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "If x is the uniform width of the walkway around the rectangular pool,\r\n" );
document.write( "then the area equation is\r\n" );
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document.write( "    (500+2x)*(250+2x) = 500*250 + 1504,\r\n" );
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document.write( "or\r\n" );
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document.write( "    500*250 + 1500x + 4x^2 = 500*250 + 1504\r\n" );
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document.write( "              4x^2 + 1500x - 1504 = 0\r\n" );
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document.write( "               x^2 +  375x -  376 = 0\r\n" );
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document.write( "               (x-1)*(x+376) = 0.\r\n" );
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document.write( "The roots are x= 1  and  x= -376: one positive and one negative.\r\n" );
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document.write( "As a possible solution, we accept the positive root and reject the negative one.\r\n" );
document.write( "</PRE>\r<BR>\n" );
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document.write( "Solved, answered and explained.\r<BR>\n" );
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document.write( "If you want to see many other similar &nbsp;(and different) &nbsp;solved problems, &nbsp;look into the lessons\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/Surface-area/Problems-on-the-area-of-a-rectangle-surrounded-by-a-strip.lesson>Problems on the area and the dimensions of a rectangle surrounded by a strip</A>\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/Surface-area/Cynthia-Besch-and-the-rug.lesson>Cynthia Besch wants to buy a rug for a room</A> \r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/Surface-area/Circular-pool-and-a-walkway-around.lesson>Problems on a circular pool and a walkway around it</A>\r<BR>\n" );
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document.write( "in this site.\r<BR>\n" );
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document.write( "Also, &nbsp;you have this free of charge online textbook in ALGEBRA-I in this site\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson>ALGEBRA-I - YOUR ONLINE TEXTBOOK</A>.\r<BR>\n" );
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document.write( "The referred lesson is the part of this online textbook under the topic <BR>\n" );
document.write( "\"<U>Dimensions and the area of rectangles and circles and their elements</U>\".\r<BR>\n" );
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document.write( "Save the link to this online textbook together with its description\r<BR>\n" );
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document.write( "Free of charge online textbook in ALGEBRA-I<BR>\n" );
document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r<BR>\n" );
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document.write( "to your archive and use it when it is needed.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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