document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=347982>Question 347982</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two airplanes leave the same airport one hour apart going in the same direction.  The first airplane is traveling at 400m/h and the second is travelling at 500m/h.  How long will the second plane be in the air before overtaking the first?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #248820 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=248820\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D=RT<BR>\n" );
document.write( "D=400T FOR THE FIRST PLANE TO LEAVE.<BR>\n" );
document.write( "D=500(T-1) FOR THE SECOND PLANE.<BR>\n" );
document.write( "BECAUSE THE DISTANCES ARE THE SAME WE SET THESE 2 EQUATION EQUAL.<BR>\n" );
document.write( "400T=500(T-1)<BR>\n" );
document.write( "400T=500T-500<BR>\n" );
document.write( "400T-500T=-500<BR>\n" );
document.write( "-100T=-500<BR>\n" );
document.write( "T=-500/-100<BR>\n" );
document.write( "T=5 HOURS AFTER THE FIRST PALNE LEAVES THEY WILL MEET.<BR>\n" );
document.write( "5-1=4 HOURS THE SECOND PLANE WILL BE IN THE AIR BEFORE OVERTAKING THE FIRST PLANE.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "400*5=500(5-1)<BR>\n" );
document.write( "2,000=500*4<BR>\n" );
document.write( "2,000=2,000 </SPAN>\n" );
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