Final answer:
The equation that describes the relationship between distance and time is d = 4h. After 4 hours, the hikers will be 16 miles from their car.
Step-by-step explanation:
The equation that describes the relationship between m and h is d = 4h, where d represents the distance in miles. This means that the distance is equal to 4 times the number of hours.
To find the number of hours it will take for the hikers to be 16 miles from their car, we can substitute d = 16 into the equation and solve for h.
16 = 4h
Dividing both sides of the equation by 4, we get:
h = 4
Therefore, after 4 hours, the hikers will be 16 miles from their car.