document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=107682>Question 107682</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ricky drove from Town A to Town B in 3 hours. His return trip from Town B to Town A took 5 hours because he drove 15 miles per hour slower on the return trip.<BR>\n" );
document.write( "How fast did Ricky drive on the trip from Town A to Town B? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #78441 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=78441\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You must begin with the firmly held conviction that nobody picked up Town A and moved it during the 8+ hours that Ricky was gone.\r<BR>\n" );
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document.write( "We know that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=rt ALIGN=MIDDLE  ALT=\"d=rt\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "For the initial trip, we only know that t = 3, so:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=3r ALIGN=MIDDLE  ALT=\"d=3r\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "For the return trip, we know that t = 5 and r is 15 mph slower, so:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=5%28r-15%29 ALIGN=MIDDLE  ALT=\"d=5%28r-15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Since the distance going is the same as the distance returning, we can say:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3r=5%28r-15%29 ALIGN=MIDDLE  ALT=\"3r=5%28r-15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Simplify and solve:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3r=5r-75 ALIGN=MIDDLE  ALT=\"3r=5r-75\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2r=-75 ALIGN=MIDDLE  ALT=\"-2r=-75\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=37.5 ALIGN=MIDDLE  ALT=\"r=37.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > mph\r<BR>\n" );
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document.write( "Check:\r<BR>\n" );
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document.write( "Does <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2A37.5=5%2837.5-15%29 ALIGN=MIDDLE  ALT=\"3%2A37.5=5%2837.5-15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >?  I'll leave the arithmetic for you. </SPAN>\n" );
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