document.write( "Question 769678: A train leaves a station and travels at 80 mi/hr for 3.5 hours, and then at 10 mi/hr for 2 hours to reach its destination. What was the train's average speed for the entire trip? \n" ); document.write( "
Algebra.Com's Answer #468998 by Cromlix(4381) You can put this solution on YOUR website! Distance = Speed * Time \n" ); document.write( "1)Distance = 80mi/hr * 3.5hrs \n" ); document.write( " Distance = 280mi \n" ); document.write( "2)Distance = 10mi/hr * 2hrs \n" ); document.write( " Distance = 20mi \n" ); document.write( "Total Distance = 300 miles. \n" ); document.write( ".................... \n" ); document.write( "Speed = Distance/ Time \n" ); document.write( "Speed = 300mi/5.5hrs \n" ); document.write( "Average Speed = 54.55mi/hr \n" ); document.write( "Hope this helps. \n" ); document.write( ":-) \n" ); document.write( " |