Suppose that a is inversely proportional to b. If a=-3 when , b=16 find a when b=8. Express your answer as a fraction.
Inverse proportion: a=k/b
With the first equation, we get -3=k/16. So, k=-48
Inversely proportional means a = k/b when a = -3 b = 16 then k (the proprtionality konstant) = -48
so a =- 48/b
Now put in '8' for b to compute 'a'