If a bicycle wheel has traveled f/π feet after n complete revolutions, what is the length in feet of the diameter of the bicycle wheel?

Question

A. f/nπ^2
B. π^2/fn
C. nf/π^2
D. nf/π^2
E. f/n

Answer 1

n rotations = f/π ft
1 rotation = fπ/n ft

2πr = fπ/n
r = f/(2n) ft
diameter = 2r = f/n ft

Answer 2

thanks reiny

Answer 3

(F/pi) feet......in N rotation
?.............in 1 rotation

(F/ pi × N)feet

C= 2pi r
(F/ pi × N) = 2pi r
r = ( F/ 2(pi^2)N)

Answer....Dia = F/(pi N^2)

Answer 4

Emily's bicycle wheel has a diameter of 18 inches.
If the wheel makes 20 revolutions, approximately how far will the bicycle have traveled?

Answer 5

I need help on this too lol