Question

Usain can run 3 miles in 20 minutes.

Which of the following could be the
constant of proportionality, k, that relates
the number of miles run and the number
of minutes it takes?
a. 3/20
b. 20/3
c. 23
d. 60

Answer 1

a

Explanation:

"the number of miles" which is 3 and then / "the number of minutes" which is 20. So this means it will look like 3/20, answer A