n African elephant can run 15 mph. Write an equation using two variables to show the relationship between the how many hours the elephant runs, r , and the distance the elephant ran, d .

Let's represent the number of hours the elephant runs as "r" and the distance the elephant runs as "d". Since we know that an African elephant can run at a speed of 15 mph, we can use the formula:

d = r * 15

This equation shows the relationship between the number of hours the elephant runs and the distance it covers.