document.write( "Question 779777: You normally drive on the freeway between San Diego and Los Angeles at an average speed of 104 km/h (65 mi/h), and the trip takes 2 h and 21 min. On a Friday afternoon, however, heavy traffic slows you down and you drive the same distance at an average speed of only 69 km/h (43 mi/h). How much longer does the trip take? \n" ); document.write( "
Algebra.Com's Answer #475352 by Cromlix(4381) You can put this solution on YOUR website! 2hrs 21 mins = 2.35 hours \n" ); document.write( "Distance = Speed * Time \n" ); document.write( "Distance = 104 km/hr * 2.35 hrs \n" ); document.write( "= 244.4 km. \n" ); document.write( "Time = Distance/Speed \n" ); document.write( "Time = 244.4km/69km/hr \n" ); document.write( "= 3.542 hours \n" ); document.write( "= 3 hours 33 minutes \n" ); document.write( "3 hours 33 minutes - 2 hours 21 minutes \n" ); document.write( "= 1 hour 12 minutes longer. \n" ); document.write( "Hope this helps. \n" ); document.write( ":-) \n" ); document.write( " |