x varies inversely as y and x is 3, when y is 10. What is y when x is 5?

Question

what would the variable y be when x is 5?

Answer 1

x= k/y

3=k/10

k= 3(10) = 30

x = 30/y

5 = 30/y

5y = 30

y = 30/5 = 6 when x = 5