Word problem

Question

If family makes Hollywood travel plans see their grandparents are the 351 miles away they leave it 8:30 AM and arrive at 3:15 PM the same day traveling nonstop calculate the average rate of speed that the family traveled mile per hour

Answer 1

Calculate the total time, in hours, of this implausible nonstop trip.  (No pitstop!)

Distance = rate(time) so rate = distance / time; 351 miles/t hours= _________ mi/hr.