document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1056600>Question 1056600</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A airplane had been flying for 1 hour when a change of wind current doubled the rate of the plane. If the entire trip of 384 km took 2.5 hours, how far did the plane travel in the first hour? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #671688 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=671688\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A airplane had been flying for 1 hour when a change of wind current doubled the rate of the plane. If the entire trip of 384 km took 2.5 hours, how far did the plane travel in the first hour? <BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "1st leg DATA:<BR>\n" );
document.write( "time = 1 hr ; rate = x mph ; distance = x miles<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "2nd leg DATA:<BR>\n" );
document.write( "time = 1.5 hr ; rate = 2x mph ; distance = 1.5*2x = 3x miles<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "x + 3x = 384 km<BR>\n" );
document.write( "4x = 384<BR>\n" );
document.write( "x = 98 km (distance traveled in 1st hour)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "---------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );