Answer:
y=10
Step-by-step explanation:
Y varies inversely as x means y is inversely proportional to x. Therfore :
y = k/x where k is the constant of proportionality
So to find this constant we use the scenario given.
When y is 20 x is 4. So putting these values in the equation :
y=k/x
20=k/4
k=80
Now that we have K we are can find Y when x is 8:
y=80/x
y=80/8
y=10
