Write an equation for the given:

Question

"f varies inversely as m and f is 32 when m is 0.2."
Also, find f is m = 4.

Answer 1

f=k/m. Given 32=k*0.2, hence k=32/0.2
k=160. The required eq should be f=160/m.
At m=4, f=160/4=40