Answer:
Speed = 3.75 miles per hour.
Explanation:
Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.
Mathematically, speed is given by the equation;


Given the following data;
Distance, d = 3/4 miles
Time, t = 1/5 hour
Substituting into the equation, we have;



Speed, S = 3.75mph.
Therefore, Josie's speed is 3.75 miles per hour.