document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=319981>Question 319981</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Dan is preparing for a 10-mile race. He will run the first 5 miles at an average speed of 6 miles per hour, the next 3 miles at an average speed of 8 miles per hour, and the final 2 miles at an average speed of 10 miles per hour. How many hours, rounded to the nearest hundredth of an hour, will it take Dan to run the race if he follows his plan? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #229199 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=229199\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Dan is preparing for a 10-mile race. <BR>\n" );
document.write( "first 5 miles average speed of 6 miles per hour,<BR>\n" );
document.write( "next 3 miles at an average speed of 8 miles per hour,<BR>\n" );
document.write( "final 2 miles at an average speed of 10 miles per hour. <BR>\n" );
document.write( "..<BR>\n" );
document.write( "first leg time = 5/6 hours<BR>\n" );
document.write( "second leg time = 3/8 hours<BR>\n" );
document.write( "third leg time = 2/10 hours<BR>\n" );
document.write( "..<BR>\n" );
document.write( "total time = 5/6+3/8+2/10<BR>\n" );
document.write( "LCM = 480<BR>\n" );
document.write( "5*80 + 3*60+2*48 / 480<BR>\n" );
document.write( "400+180+96 / 480<BR>\n" );
document.write( "676/480<BR>\n" );
document.write( "= 1.41 hours </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );