document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=46665>Question 46665</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0078608619/algebrahomeworkh>advanced mathematical concepts precalculus with applications </A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> the sante fe rec. department has a 50 foot by 70 foot area for construction of a new pool. The pool will be surrounded by a concrete sidewalk of constant width. Because of water restrictions, the pool can have a maximum area of 2400 square feet. What should the width of the sidewalk that surrounds the pool be? <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 #30918 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=30918\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 50*70=3500 sq feet thus the border must be 3500-2400=1100 sq feet or \r<BR>\n" );
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document.write( "(70-2x)(50-2x)=2400 or 3500-100x-140x+4x~2=2400 or 4x~2-240x+1100=0 or\r<BR>\n" );
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document.write( "x~2-60x+275=0 or (x-55)(x-5)=0 or x=55 & X=5 THUS THE SIDEWALK IS 5 FEET WIDE   </SPAN>\n" );
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