Answer:
The average rate of speed = 53.8 mph
Step-by-step explanation:
Sharon drove 188.3 miles.
She was driving for 3 1/2 hours = 7/2 = 3.5hours
To find the average speed simply divide the miles she drove by driving hours:
188.3/3.5
53.8 mph.
Therefore the average rate of speed = 53.8 mph....
