document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=551394>Question 551394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of a rectangular swimming pool is twice its width. The pool is surrounded by a cement walk 4ft wide. If the area of the walk is 748ft^2, determine the dimensions of the pool? Please, thank you~ :) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #359731 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=359731\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The length of a rectangular swimming pool is twice its width.<BR>\n" );
document.write( " The pool is surrounded by a cement walk 4ft wide.<BR>\n" );
document.write( " If the area of the walk is 748ft^2, determine the dimensions of the pool?<BR>\n" );
document.write( ":\r<BR>\n" );
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document.write( "Let w = the width of the pool<BR>\n" );
document.write( "It said,\"The length of a rectangular swimming pool is twice its width.\" therefore<BR>\n" );
document.write( "2w = the length of the pool<BR>\n" );
document.write( "Area = length * width, therefore:<BR>\n" );
document.write( "2w * w = 2w^2; the area of the pool<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Surrounded by a 4' walk; the overall dimensions (pool & walkway):<BR>\n" );
document.write( "(w+8) by (2w+8)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Overall area - pool area = walkway area (given as 748sq/ft)<BR>\n" );
document.write( "(w+8)*(2w+8) - 2w^2 = 748<BR>\n" );
document.write( "FOIL<BR>\n" );
document.write( "2w^2 + 8w + 16w + 64 - 2w^2 = 748<BR>\n" );
document.write( "combine like terms<BR>\n" );
document.write( "2w^2 - 2w^2 + 24w = 748 - 64<BR>\n" );
document.write( "A simple equation<BR>\n" );
document.write( "24w = 684<BR>\n" );
document.write( "w = 28.5 ft is the width of the pool<BR>\n" );
document.write( "and<BR>\n" );
document.write( "2(28.5) = 57 ft is the length of the pool<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "see if this checks out.<BR>\n" );
document.write( "find the overall area, subtract the pool area  should equal the walkway area<BR>\n" );
document.write( "(57+8)(28.5+8) = 2372.5<BR>\n" );
document.write( ". . . . 57*28.5 = 1624.5<BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "walkway area = 748<BR>\n" );
document.write( ":<BR>\n" );
document.write( "I tried to make this as understandable as possible, did I succeed? C </SPAN>\n" );
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