Answer:
Total distance traveled in all = 220 miles
Average speed for the entire trip = 44 miles per hours
Explanation:
The family traveled from point A to B in 2 hours at a speed of 55 miles per hour.
Average speed = distance traveled/time taken
Time traveled from point A to B = 2 hours
Average speed from point A to B = 55 miles per hour
using the formula,
55 = Distance traveled from point A to B / 2
cross multiplying
Distance traveled from point A to B = 55 × 2
Distance traveled from point A to B = 110 miles
The family returned from point B to A , due to snowstorm the family took 3 hours to travel back to A .
The total travel is the total distance the family covers from point A to B and point B to A.
Since the distance from point A to B is known , point B to A distance is also known.
Total distance covered = distance from point A to B + distance from point B to A
Total distance covered = 110 + 110 = 220 miles
Total distance traveled in all = 220 miles
Total time traveled = 2 + 3 = 5 hours
Average speed for the entire trip = 220/5
Average speed for the entire trip = 44 miles per hours