document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=556226>Question 556226</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How long will it take to get to Jackson, Mississippi from Alpena, Michigan if you travel an average of 60 mph and drive for eight hours a day? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #362087 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=362087\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> google maps will tell you that you will travel 1125 miles and it will take you 18 hours and 39 minutes.<BR>\n" );
document.write( "if you assume 60 miles per hour average all the way, then it would take you 1125/60 = 18.75 hours which equates to 18 hours and 45 minutes.<BR>\n" );
document.write( "this may not be realistic, however.<BR>\n" );
document.write( "if you assume 60 miles per hour and you take a 1/2 hour break every 4 hours, then you need to add about 2.5 hours for breaks, which will make the total trip time closer to 21.25 hours.<BR>\n" );
document.write( "at 21.25 hours, the average miles per hour becomes 1125/21.25 = 53 miles per hour.<BR>\n" );
document.write( "if you get stuck in traffic for maybe 20% of the way, and are only traveling at 30 miles per hour during that time, then your average miles per hour will go down accordingly.<BR>\n" );
document.write( "under that assumption, you get:<BR>\n" );
document.write( ".20 * 1125 = 225 miles<BR>\n" );
document.write( "225 / 30 = 7.5 hours.<BR>\n" );
document.write( "(1125 - 225) = 900 / 60 = 15 hours.<BR>\n" );
document.write( "total hours = 22.5 hours.<BR>\n" );
document.write( "1/2 hour breaks every 4 hours will add (22.5/4) = 2.8125 hours to the trip for a total of 25.3125 hours.<BR>\n" );
document.write( "1125 miles in 25.3125 comes up to an average speed of 45 miles per hour.<BR>\n" );
document.write( "let's just say you will probably take somewhere between 21 hours and 25 hours and your average speed will be somewhere between 53 miles per hour and 45 miles per hour.<BR>\n" );
document.write( "not taking any breaks is not recommended.<BR>\n" );
document.write( "25 hours on the road is brutal on the driver and the passengers.<BR>\n" );
document.write( "you would probably want to split the trip into 2 days of about 12 hours apiece.<BR>\n" );
document.write( "assume 24 hours on the road for simplicity and assume you split the trip up into 2 days, then you can figure that if you leave by 9am on one day, you would arrive around 9pm on the next day.\r<BR>\n" );
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