document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=268162>Question 268162</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I set up and solve this problem? Linda drove from Philadelphia to NYC at the rate of 50 miles per hour. She made the trip from NYC to Philadelphia at the rate of 40 miles per hour. She drove the same route both ways. Her total driving time was 3.6 hours. Find the number of hours she drove from Philadelphia to NYC. Hint: Let x be the number of hours from Philadelphia to NYC. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #196592 by </B><A HREF=/tutors/aboutme.mpl?userid=drk><B>drk(1908)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=drk><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=196592\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is an RTD question. Here is a table based on the given information<BR>\n" );
document.write( "travel . . . . . . . .rate . . . . . . . . . . time . . . . . . . . . distance<BR>\n" );
document.write( "to NYC . . . . . . .50. . . . . . . . . . . . x. . . . . . . . . . . . .50x<BR>\n" );
document.write( "to Phila . . . . . . 40. . . . . . . . . . . . 3.6 - x. . . . . . . . 144 - 40x<BR>\n" );
document.write( "total . . . . . . . . . . . . . . . . . . . . . . 3.6 . . . . . . . . . . . . . . <BR>\n" );
document.write( "since distance is the same, we get<BR>\n" );
document.write( "50x = 144 - 40x<BR>\n" );
document.write( "add 40x to get<BR>\n" );
document.write( "90x = 144<BR>\n" );
document.write( "divide to get<BR>\n" );
document.write( "x = 1.6 hours to NYC </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );