document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1128455>Question 1128455</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The owners of the rectangular swimming pool want to surround the pool with a crushed-stone border of uniform width. They have enough stone to cover 74 square meters. How wide should they make the border? (Hint: The area of the larger rectangle minus the area of the smaller is the area of the border.)\r<BR>\n" );
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document.write( "Some more supporting information:<BR>\n" );
document.write( "length= 25 + 2w (around the border)<BR>\n" );
document.write( "width= 10 + 2w (around the border)\r<BR>\n" );
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document.write( "length= 25 meters (inside the swimming pool)<BR>\n" );
document.write( "width= 10 meters (inside the swimming pool)<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 #744911 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52814)</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=744911\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Your post is uncompleted, since it does not provide input info about the dimensions of the pool.\r<BR>\n" );
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document.write( "Then you add this info L = 25 m, W = 10 m.\r<BR>\n" );
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document.write( "With this data the solution is as follows:\r<BR>\n" );
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document.write( "    (25+2w)*(19+2w) - 25*10 = 74.        <<<---=== the area of the border is the difference of areas of two rectangles \r\n" );
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document.write( "    25*19 + 50w + 38w + 4w^2 - 25*10 = 74\r\n" );
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document.write( "    4w^2 + 88w - 74 = 0\r\n" );
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document.write( "    2w^2 + 44w - 37 = 0\r\n" );
document.write( "</PRE>\r<BR>\n" );
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document.write( "From this point, can you complete the solution on your own ?\r<BR>\n" );
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document.write( "You can use the quadratic formula to solve the last equation.\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Good luck and happy solving !\r<BR>\n" );
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document.write( "To see many other similar 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( "Thanks for posting your solution.\r<BR>\n" );
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document.write( "I edited a bit your last post.\r<BR>\n" );
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document.write( "I am very glad that you made a step forward after my response and were able to complete the solution.\r<BR>\n" );
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document.write( "Your answer is correct, and your post clearly shows that you understand the solution in all details.\r<BR>\n" );
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document.write( "Again, I am very glad.\r<BR>\n" );
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document.write( "My congratulations !\r<BR>\n" );
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document.write( " </SPAN>\n" );
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