document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=346237>Question 346237</A>: <I><SPAN STYLE=\"word-break: break-all;\"> On a 2 mile racetrack you bike the first mile at 10 mph. At what rate must you bike the second mile in order to average 20mph for the entire track?\r<BR>\n" );
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document.write( "I am not sure what formula to use and the average has me confused. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #247579 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=247579\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let's see how long it takes to go 2 miles at 20mph<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Distance+=+Veloticy+%2A+Time ALIGN=MIDDLE  ALT=\"Distance+=+Veloticy+%2A+Time\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Distance%2FVelocity+=+Time ALIGN=MIDDLE  ALT=\"Distance%2FVelocity+=+Time\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F20+=+0.1 ALIGN=MIDDLE  ALT=\"2%2F20+=+0.1\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours. So you would take 6 minutes to cover 2 miles at 20 mph\r<BR>\n" );
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document.write( "Now, how long did you take to go 1 mile at 10 mph\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Distance%2FVelocity+=+Time ALIGN=MIDDLE  ALT=\"Distance%2FVelocity+=+Time\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F10+=+0.1 ALIGN=MIDDLE  ALT=\"1%2F10+=+0.1\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours . You used all 6 minutes on the first mile<BR>\n" );
document.write( "Basically, you need to cover the next mile in no time at all.<BR>\n" );
document.write( "So, either you go infinitely fast or it can't be done.<BR>\n" );
document.write( "Since we can't go that fast, you cannot average 20 mph </SPAN>\n" );
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