document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=262765>Question 262765</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Drive home from Dallas at 60 mph and returned home at speed of 45 mph.  If the total driving time was 21 hours, how far is it from your home to Dallas?  I have tried the D=r*t formula but I can't seem to plug it together correctly.  Can you show me the correct equation by steps?  Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #193546 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=193546\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is an RTD problem. creating a table from above, we get<BR>\n" );
document.write( "driving . . . . . rate . . . . . .time . . . . . distance<BR>\n" );
document.write( "from D . . . . . .60 . . . . . . .T . . . . . . . . 60T<BR>\n" );
document.write( "home . . . . . . .45 . . . . . .21 - T . . . . . 945 - 45T<BR>\n" );
document.write( "total . . . . . . . . . . . . . . . . 21. . . . . . . . . . . . . .<BR>\n" );
document.write( "It appears that the distances are equal, so we get<BR>\n" );
document.write( "60T = 945 - 45T<BR>\n" );
document.write( "and then<BR>\n" );
document.write( "105T = 945<BR>\n" );
document.write( "T = 9.<BR>\n" );
document.write( "We need distances, so<BR>\n" );
document.write( "60(9) = 540 miles<BR>\n" );
document.write( "45 (21-9) = 45(12) = 540 miles. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );