document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=319424>Question 319424</A>: <I><SPAN STYLE=\"word-break: break-all;\"> George drives the first 30 miles of a trip at a constant rate of 40 miles per hour. If he drives the remaining 75 miles of the trip at a constant rate of 50 miles per hour, what is his average speed for the entire trip? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #228731 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=228731\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 30 miles at 40 mph<BR>\n" );
document.write( "time taken at this speed = 30/40 = 3/4 hours <BR>\n" );
document.write( "..<BR>\n" );
document.write( "75 miles at 50mph<BR>\n" );
document.write( "time taken = 75/50 = 3/2 hours <BR>\n" );
document.write( "Total time taken = 3/4 +3/2 hours=3+6 /4<BR>\n" );
document.write( "=9/4 hours<BR>\n" );
document.write( "Total distance traveled = 30+75 = 105 miles<BR>\n" );
document.write( "Average speed = 105/  9/4<BR>\n" );
document.write( "=105*4/9<BR>\n" );
document.write( "46.6 mph is the average speed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );