It is given that 8 hours 15 minutes was driven with an average speed of 48 mph.
It is required to estimate the distance traveled to the nearest mile.
Recall that distance is the product of speed and time.
Convert 15 minutes to hour by dividing by 60:
Hence, it follows that 8 hours 15 minutes = (8+0.25)hours = 8.25 hours
Hence, the distance is the product:
The estimated distance is 396 miles.