document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=950737>Question 950737</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two planes are flying around the world. The first plane is flying at 300 miles per hour (mph) and is 350 miles ahead of the second plane. The second plane is flying at 400 mph. How long will it take for the second plane to catch the first plane?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #580606 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39630)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=580606\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> __________________rate__________time_____________distance<BR>\n" );
document.write( "FIRST_____________300____________t________________d<BR>\n" );
document.write( "SECND_____________400____________t________________d+350\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The second plane must overcome both d and the 350 miles behind in the time of t, to catchup with the first plane.  The travel time for this catching-up is the same for both planes, but this is the variable which is asked to be solved.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Using RT=D,\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28300t=d%2C400t=d%2B350%29 ALIGN=MIDDLE  ALT=\"system%28300t=d%2C400t=d%2B350%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The simple substitution from the first equation gives this equation,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=400t=300t%2B350 ALIGN=MIDDLE  ALT=\"400t=300t%2B350\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "easily solvable to find t. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );