document.write( "Question 358662: a car traveled 600 miles at 60 mph and 40mph on the return trip. What was the average speed for the whole trip \n" ); document.write( "
Algebra.Com's Answer #255995 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! d=rt \n" ); document.write( "d/r=t \n" ); document.write( "300/60+300/40=t \n" ); document.write( "5+7.5=t \n" ); document.write( "t=12.5 hours. \n" ); document.write( "600/12.5=48 mph. is the average for the entire trip. \n" ); document.write( " \n" ); document.write( " |