Question

The pair values below are from an inverse variation.find the missing value

(8,11),(10,y)

Answer 1

The inverse variation formula is xy = k

In the first set of values you have x and y so you can solve for k:

8 x 11 = k

k = 88

Now in the second set of values you have x and we have k from the first set so we have:

10 x y = 88

Solve for y by dividing both sides by 10:

y = 88 /10

y = 8.8