document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=747650>Question 747650</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tiffany traveled by scooter for an average speed of 32 miles per hour. Then,she traveled by train for an average speed of 64 miles per hour. In total she traveled 371 miles for 7 hours. How many miles did she travel by train? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #455027 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley79><B>checkley79(3341)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley79><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=455027\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D=RT<BR>\n" );
document.write( "The distance has 2 factors. The scooter trip (32T) & the train trip (64[7-T]). They have to be added to get the full 371 mile trip.<BR>\n" );
document.write( "371=32T+64(7-T)<BR>\n" );
document.write( "371=32T+64*7-64T<BR>\n" );
document.write( "371=-32T+448<BR>\n" );
document.write( "-32T=371-448<BR>\n" );
document.write( "-32T=-77<BR>\n" );
document.write( "T=-77/-32<BR>\n" );
document.write( "T=2.4 HOURS FOR THE 32 MPH TRIP.<BR>\n" );
document.write( "7-2.4=4.6 HOURS FOR THE 64 MPH TRIP.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "371=32*2.4+64*4.6<BR>\n" );
document.write( "371=76.8+294.4<BR>\n" );
document.write( "371=371.2 (ROUNDING ERROR).<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );