Question
Stefan drove 558 in 9 hours. He then drove 120 miles in 3 hours. What was Stefan's average speed for the whole trip???
Answers
Noah
PLEASE HELP! Im in 3rd grade!
Reiny
total distance = 558+120 = 678 miles
total time = 9 + 3 = 12 hours
average speed = total distance/total time = 56.5 miles/hrs.
total time = 9 + 3 = 12 hours
average speed = total distance/total time = 56.5 miles/hrs.