Respuesta :
Speed = (total distance covered) / (time to cover the distance) .
The direction at any time during the trip doesn't matter.
This car traveled (30mi + 50mi + 30mi) = 110 miles .
The trip took (30min + 60min + 30min) = 120 minutes
The average speed for the trip was
(110 miles) / (120 minutes)
= (110 miles) / (2 hours)
= 55 miles/hour .
The direction at any time during the trip doesn't matter.
This car traveled (30mi + 50mi + 30mi) = 110 miles .
The trip took (30min + 60min + 30min) = 120 minutes
The average speed for the trip was
(110 miles) / (120 minutes)
= (110 miles) / (2 hours)
= 55 miles/hour .