document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=857793>Question 857793</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A plane flies round-trip to Philadelphia. If flies to Philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour. If the total trip takes 6.5 hours, how many miles does the plane fly round-trip? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #516829 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=516829\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "a+b=6.5,<BR>\n" );
document.write( "220a=280b<BR>\n" );
document.write( "a=3.64 hours ,   b=2.86 hours ,   1601.6 miles roundtrip\r<BR>\n" );
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document.write( " bonus info\r<BR>\n" );
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document.write( "x-w=220<BR>\n" );
document.write( "x+w=280<BR>\n" );
document.write( "2x=500<BR>\n" );
document.write( "x=250 mph  plane without wind<BR>\n" );
document.write( "wind is 30 mph\r<BR>\n" );
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