document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=949880>Question 949880</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Terrell drove to the mountains at an average 60mph. His return trip,  by the same roads, averaged 40mph. His total driving time was 12 hours. How far did he drive one way? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #579950 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=579950\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> d=distance one way; t=time; r1=rate going; r2=rate returning<BR>\n" );
document.write( "t=d/r1+d/r2=d/60mph+d/40mph=d(1/60mph+1/40mph)<BR>\n" );
document.write( "t=1/60+1/40=2/120+3/120=5/120=d(1/24 mph)multiply each side by 24 mph.<BR>\n" );
document.write( "t*24 mi/hr=d<BR>\n" );
document.write( "12 hrs(24 mi/hr)=d<BR>\n" );
document.write( "288 mi=d ANSWER: Terrell drove 288 miles one way<BR>\n" );
document.write( "CHECK:<BR>\n" );
document.write( "round trip=12 hrs<BR>\n" );
document.write( "12 hrs=288 mi/60 mph+288 mi/40 mph=4.8 hrs+7.2 hrs<BR>\n" );
document.write( "12 hrs=12 hrs <BR>\n" );
document.write( " </SPAN>\n" );
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