Question

If y varies directly as x and x= 8 when y=5, what is y when x = 9?
Question 11 options:
72/5
45/8
40/9
6

Answer 1

B

Answer 2

45/8

Answer 3

thanks

Answer 4

y = (5/8)x

Answer 5

y=kx where k is the constant of proportionality.
5=k8
k=5/8
y=(5/8)9
y=45/8=5' 5/8