Question

Suppose y is inversely proportional to x. When x is 9, y is 10. What is the rule for the inverse variation?
A. x=y/90
B. y=x/90
C. y=90x
D. y=90/x

Answer 1

y is inversely proportional to x
therefore
y= k/x
now when y is 10, x is 9
k= y*x
k=9*10
k=90

So,
y=90/x

Option D

Answer 2

Answer:

D) y= 90/x

please mark me as brainliest and follow me