Answer:
Step-by-step explanation:
Answer:
1/2 (60)
Step-by-step explanation:
1 should be b and 2 should be a
This is how to find the average speed: the total distance ÷ the total number of hours
the total distance in this case is 120+120=240
the total hours is 120/60 + 120/40 =2+3=5
so 240/5=48
48 miles per hour