document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=943456>Question 943456</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1 car travels 15 miles an hour the 2nd car travels 30 miles an hour.  The first car traveling at 15 miles an hour gets a 20 second head start.  Which car will be the first to cross the finish line which is .25 miles away?  What is the formula used in this math problem? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #575194 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=575194\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How much of a head start did the 1st car get?<BR>\n" );
document.write( "You have to convert <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+20+ ALIGN=MIDDLE  ALT=\"+20+\"   DISABLED_style= \"max-width:90%; height:auto;\" > sec to hours<BR>\n" );
document.write( "( seconds ) x ( minutes / second ) x ( hours / minute ) = hours<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+20%2A%28+1%2F60+%29%2A%28+1%2F60+%29+=+20%2F3600+ ALIGN=MIDDLE  ALT=\"+20%2A%28+1%2F60+%29%2A%28+1%2F60+%29+=+20%2F3600+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+20%2F3600+=+1%2F180+ ALIGN=MIDDLE  ALT=\"+20%2F3600+=+1%2F180+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B1%5D+ ALIGN=MIDDLE  ALT=\"+d%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1st car's head start in miles<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B1%5D+=+r%2At+ ALIGN=MIDDLE  ALT=\"+d%5B1%5D+=+r%2At+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B1%5D+=+15%2A%28+1%2F180+%29+ ALIGN=MIDDLE  ALT=\"+d%5B1%5D+=+15%2A%28+1%2F180+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B1%5D+=+5%2F60+ ALIGN=MIDDLE  ALT=\"+d%5B1%5D+=+5%2F60+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B1%5D+=+1%2F12+ ALIGN=MIDDLE  ALT=\"+d%5B1%5D+=+1%2F12+\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "If you start 2 stopwatches when the 2nd car leaves,<BR>\n" );
document.write( "and you time both cars, then you let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B1%5D+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <BR>\n" );
document.write( "1st car's time in hrs, and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B2%5D+ ALIGN=MIDDLE  ALT=\"+t%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 2nd car's <BR>\n" );
document.write( "time in hrs<BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "2nd car's equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F4+=+30t%5B2%5D+ ALIGN=MIDDLE  ALT=\"+1%2F4+=+30t%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B2%5D+=+1%2F120+ ALIGN=MIDDLE  ALT=\"+t%5B2%5D+=+1%2F120+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "1st car's equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F4+-+1%2F12++=+15t%5B1%5D+ ALIGN=MIDDLE  ALT=\"+1%2F4+-+1%2F12++=+15t%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3%2F12+-+1%2F12+=+15t%5B1%5D+ ALIGN=MIDDLE  ALT=\"+3%2F12+-+1%2F12+=+15t%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+15t%5B1%5D+=+1%2F6+ ALIGN=MIDDLE  ALT=\"+15t%5B1%5D+=+1%2F6+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B1%5D+=+1%2F90+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+=+1%2F90+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F120+ ALIGN=MIDDLE  ALT=\"+1%2F120+\"   DISABLED_style= \"max-width:90%; height:auto;\" > is smaller than <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F90+ ALIGN=MIDDLE  ALT=\"+1%2F90+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so<BR>\n" );
document.write( "the 2nd car crosses first\r<BR>\n" );
document.write( "\n" );
document.write( " \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "  <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );