A circle has a circumference of 47.1 in. What is the circle's diameter?

(Use 3.14 for pi)

The formula for circumference is:

C = πd

where C is the circumference, π is pi (approximately 3.14), and d is the diameter.

We can rearrange this formula to solve for d:

d = C/π

Plugging in the given values, we get:

d = 47.1/3.14

d ≈ 15

So the circle's diameter is approximately 15 inches.