Answer:
Her speed is 5 miles per hour.
Step-by-step explanation:
The formula of the speed is given by:
[tex]v = \frac{d}{t}[/tex]
In which d is the distance, and t is the time.
In this question:
Distance: 1/4 mile = 0.25 miles.
Time: 1/20 hour = 0.05 hours.
So
[tex]v = \frac{d}{t} = \frac{0.25}{0.05} = 5[/tex]
Since the distance is in miles and the time in hours, the speed is in miles per hour.
Her speed is 5 miles per hour.
