document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=648758>Question 648758</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A jet plane traveling at 550 mph overtakes a propeller plane traveling at 200 mph with a two hour head start. How far from the starting point are the planes? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #406795 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=406795\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First find the head start of the prop plane in miles<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B1%5D+=+200%2A2+ ALIGN=MIDDLE  ALT=\"+d%5B1%5D+=+200%2A2+\"   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+=+400+ ALIGN=MIDDLE  ALT=\"+d%5B1%5D+=+400+\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi<BR>\n" );
document.write( "Start a stopwatch when the jet leaves<BR>\n" );
document.write( "Now they will both fly for the same<BR>\n" );
document.write( "amount of time until jet catches prop<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+ ALIGN=MIDDLE  ALT=\"+d+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = distance jet travels<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = time on stopwatch<BR>\n" );
document.write( "--------------------------------<BR>\n" );
document.write( "Jet's equation:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+550t+ ALIGN=MIDDLE  ALT=\"+d+=+550t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "prop's equation:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+-+400+=+200t+ ALIGN=MIDDLE  ALT=\"+d+-+400+=+200t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "Substitute (1) into (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+550t+-+400+=+200t+ ALIGN=MIDDLE  ALT=\"+550t+-+400+=+200t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+350t+=+400+ ALIGN=MIDDLE  ALT=\"+350t+=+400+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+8%2F7+ ALIGN=MIDDLE  ALT=\"+t+=+8%2F7+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+550%2A%288%2F7%29+ ALIGN=MIDDLE  ALT=\"+d+=+550%2A%288%2F7%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+628.57+ ALIGN=MIDDLE  ALT=\"+d+=+628.57+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The planes are 628.57 mi from the start<BR>\n" );
document.write( "( unless I miscalculated )\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );