document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=214958>Question 214958</A>: <I><SPAN STYLE=\"word-break: break-all;\"> you take a airplane ride which takes 3hrs and you are traveling at 180 mph.  no air restrictions.  on the way back it only takes you 2.8 hrs.  what is the air speed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #162414 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=162414\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">     you take a airplane ride which takes 3hrs and you are traveling at 180 mph. no air restrictions. on the way back it only takes you 2.8 hrs. what is the air speed?<BR>\n" );
document.write( ".<BR>\n" );
document.write( "You will need to apply the distance formula:<BR>\n" );
document.write( "d = rt<BR>\n" );
document.write( "where<BR>\n" );
document.write( "d is distance<BR>\n" );
document.write( "r is rate or speed<BR>\n" );
document.write( "t is time<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Let w = air speed<BR>\n" );
document.write( "then<BR>\n" );
document.write( "3(180-w) = 2.8(180+w)<BR>\n" );
document.write( "3(180-w) = 2.8(180+w)<BR>\n" );
document.write( "240 - 3w = 504 + 2.8w<BR>\n" );
document.write( "240 + 5.8w = 504<BR>\n" );
document.write( "5.8w = 264<BR>\n" );
document.write( "w = 45.52 mph </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );