document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=623655>Question 623655</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A airplane leaves an airport traveling east at 140 mph. 20 minutes later, a jet leaves the same airport traveling east at 515 mph.<BR>\n" );
document.write( "how long will the plane be flying before the jet passes it? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #392279 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=392279\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A airplane leaves an airport traveling east at 140 mph. 20 minutes later, a jet leaves the same airport traveling east at 515 mph.<BR>\n" );
document.write( "how long will the plane be flying before the jet passes it?<BR>\n" );
document.write( "**<BR>\n" );
document.write( "let x=travel time of airplane<BR>\n" );
document.write( "x-1/3=travel time of jet (20 min=1/3 hr)<BR>\n" );
document.write( "distance=travel time*speed<BR>\n" );
document.write( "..<BR>\n" );
document.write( "140x=515(x-1/3)=515x-515/3<BR>\n" );
document.write( "375x=515/3<BR>\n" );
document.write( "x=515/(3*375)*60&#8776;27.5 min<BR>\n" );
document.write( "The jet passes the airplane in about 27.5 min </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );