SOLUTION: The variable Z is inversely proportional to X. When X is 12, Z has the value 0.25. What is the value of Z when X = 19

Algebra ->  Rational-functions -> SOLUTION: The variable Z is inversely proportional to X. When X is 12, Z has the value 0.25. What is the value of Z when X = 19      Log On


   

Question 1120178: The variable Z is inversely proportional to X. When X is 12, Z has the value 0.25.
What is the value of Z when X = 19
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
z=k/x
0.25=k/12
k=3
Now use this in second part
z=3/19