Question

The value y of varies directly with x. When y = 19.375, x = 7.75.

What is the value of x when y is 21.5?
A.10.5

B.5.6

C.8.6

D.2.5

Answer 1

Answer: (X,Y) = (0.4, 7.75)

Explanation:

Y=7.75,

19.375X=7.75

Then solve for X

Divide 19.375 on both sides to get X=0.4

Y=7.75

X=0.4

Answer 2

c. 8.6 i think i’m not sure