Math i will give brainliestsuppose that a and b vary inversely and that b= 5/4 when a = 8. write a function that models the inverse variation b = 10/a b = 5/4a b = 15/4a b = 5/32a

b = 10/a is your best answer.

b = 10/a. a = 8

Plug in 8 for a

b = 10/8. 

Simplify the fraction 10/8

(10/8)/(2/2) = 5/4 (or the given b)

Therefore, b = 10/a, should be your answer

hope this helps

The variables should add up to equal 1