document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=958094>Question 958094</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two planes just took off from Salt Lake City, UT. The first plane is traveling two times as fast as the second plane. After traveling in the same direction for 4.5 hours, they are 450 miles apart. What is the average speed of each plane? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #585509 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=585509\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two planes just took off from Salt Lake City, UT. The first plane is traveling two times as fast as the second plane. After traveling in the same direction for 4.5 hours, they are 450 miles apart. What is the average speed of each plane?<BR>\n" );
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document.write( "let x=speed of 2nd plane<BR>\n" );
document.write( "2x=speed of 1st plane<BR>\n" );
document.write( "2x-x=x=speed at which the two planes are moving apart<BR>\n" );
document.write( "travel time*speed=450<BR>\n" );
document.write( "4.5x=450<BR>\n" );
document.write( "x=100<BR>\n" );
document.write( "2x=200<BR>\n" );
document.write( "ave speed of 2nd plane=100 mph<BR>\n" );
document.write( "ave speed of 1st plane=200 mph<BR>\n" );
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