SOLUTION: Assume that y varies inversely as x. If y = 3.2 when x =0.2, find y when x =1.6

Algebra ->  Rational-functions -> SOLUTION: Assume that y varies inversely as x. If y = 3.2 when x =0.2, find y when x =1.6      Log On


   

Question 41966: Assume that y varies inversely as x. If y = 3.2 when x =0.2, find y when x =1.6
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
If y varies inversely as x, we write that as
y = k/x
Now plug in to find k...
3.2 = k/.2
k = .64
now rewrite the relationship with k...
y = .64/x
y = .64/1.6
y = .4