document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=585166>Question 585166</A>: <I><SPAN STYLE=\"word-break: break-all;\"> two planes start at the same time from the same point and fly in opposite directions. the first plane is flying 30 mph faster then the second plane. in 4v hours they are 2880 mi appart find the rate of the faster plane. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #373190 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=373190\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> two planes start at the same time from the same point and fly in opposite directions. the first plane is flying 30 mph faster then the second plane. in 4v hours they are 2880 mi appart find the rate of the faster plane.<BR>\n" );
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document.write( "Going in opposite directions, their speeds are added.<BR>\n" );
document.write( "Relative speed = 2880/4v = 720/v<BR>\n" );
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document.write( "r1 + r2 = 720/v<BR>\n" );
document.write( "r1 = r2 + 30<BR>\n" );
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document.write( "r2+30 + r2 = 720/v<BR>\n" );
document.write( "2r2 = 720/v - 30 = (720 - 30v)/v<BR>\n" );
document.write( "r2 = (360-15v)/v<BR>\n" );
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document.write( "I suspect a typo.<BR>\n" );
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