document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1168100>Question 1168100</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An air traffic controller is tracking two planes. To start, Plane A is at an altitude of 5000 feet and Plane B is at an altitude of 4748 feet. Plane A is gaining altitude at 45.25 feet per second and Plane B is gaining altitude at 50.5 feet per second. <BR>\n" );
document.write( "How many seconds will pass before the planes are at the same altitude?<BR>\n" );
document.write( "What will their altitude be when they're at the same altitude? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #792736 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=792736\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Altitude(A) = 5000ft + 45.25ft/sec * t<BR>\n" );
document.write( " Altitude(B) = 4748ft + 50.5ft/sec * t<br><BR>\n" );
document.write( "They will be at the same altitude when the two equations are equal:\r<BR>\n" );
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document.write( "4748 + 50.5t = 5000 + 45.25t<br>\r<BR>\n" );
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document.write( "Solve for t:  t=<b>48sec</b><BR>\n" );
document.write( "Plug t=48 into (A) or (B):  Altitude(B)=<b>7172ft</b> \r<BR>\n" );
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