document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=284297>Question 284297</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Fred and Desi left Steamtown Mall at 9:00 am and began walking in opposite directions. At 1:00 pm that same day they were 20 miles apart. If Fred walks 0.5 mph slower than Desi, what is Desi's speed of walking?\r<BR>\n" );
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document.write( "A. 2.25 mph B. 2.75 mph C. 3.5 mph D. 5 mph E. None of these. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #854209 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(53750)</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=854209\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Fred and Desi left Steamtown Mall at 9:00 am and began walking in opposite directions. <BR>\n" );
document.write( "At 1:00 pm that same day they were 20 miles apart. If Fred walks 0.5 mph slower than Desi, <BR>\n" );
document.write( "what is Desi' speed of walking?<BR>\n" );
document.write( "A. 2.25 mph B. 2.75 mph C. 3.5 mph D. 5 mph E. None of these.<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In the post by @mananth, the treatment is not adequate to the problem.<BR>\n" );
document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Due to this reason, the solution and the answer are incorrect.\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;I came to bring a correct solution.\r<BR>\n" );
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document.write( "let desi's speed be x mph<BR>\n" );
document.write( "Fred's speed = x-0.5 mph<BR>\n" );
document.write( "In 4 hours Desi has walked 4x miles<BR>\n" );
document.write( "In 4 hours Fred has walked 4(x-0.5) miles = 4x-2<BR>\n" );
document.write( "4x + (4x -2) = 20<BR>\n" );
document.write( "8x = 22<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=22%2F8 ALIGN=MIDDLE  ALT=\"22%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=11%2F4 ALIGN=MIDDLE  ALT=\"11%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 2.75 mph &nbsp;&nbsp;&nbsp;&nbsp;Desi' speed&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<<<---===  <U>ANSWER</U>\r<BR>\n" );
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document.write( "<U>CHECK</U>.  &nbsp;&nbsp;The distance apart in 4 hours, &nbsp;at 1:00 pm, &nbsp;is 4*2.75 + 4*(2.75 - 0.5) = 20 miles.  &nbsp;&nbsp;&nbsp;&nbsp;! Precisely correct !\r<BR>\n" );
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document.write( "Solved correctly.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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