document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1166630>Question 1166630</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A company president flew 1110 miles in a corporate jet but returned in a smaller plane that could fly only half as fast. If the total travel time was 9 hours, find the speeds of the planes.<BR>\n" );
document.write( "corporate jet     	<BR>\n" );
document.write( " mph<BR>\n" );
document.write( "smaller plane     	<BR>\n" );
document.write( " mph<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 #791183 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=791183\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x hours going<BR>\n" );
document.write( "9-x hours returning<BR>\n" );
document.write( "time to go 1110 miles is 1110/s1, where s1 is speed of jet<BR>\n" );
document.write( "time to go 1110 miles is 1110/s2, where s2 is speed of jet\r<BR>\n" );
document.write( "\n" );
document.write( "so x=1110/s1<BR>\n" );
document.write( "9-x=1110/s2<BR>\n" );
document.write( "1110=s1x<BR>\n" );
document.write( "1110=s2(9-x)<BR>\n" );
document.write( "therefore, s1x=s2(9-x)<BR>\n" );
document.write( "but s1=2s2<BR>\n" );
document.write( "so 2s2x=s2(9-x)<BR>\n" );
document.write( "and 2x=9-x<BR>\n" );
document.write( "and 3x=9 <BR>\n" );
document.write( "so x=3 hours going there with speed 1110/3=370 mph in jet<BR>\n" );
document.write( "and 6 hours returning at 1110 miles or 185 mph in smaller plane. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );