Answer: If y varies inversely with x, then we know that xy=k, where k is a constant.
Using the values given in the problem, we have:
6(5) = k
k = 30
So the equation relating x and y is xy = 30.
To find y when x=3, we can plug in x=3 and solve for y:
3y = 30
y = 10
Therefore, when x=3, y=10.
Explanation: