Question

y is inversely proportional to the cube of x.
When x=2, y=9.
Find y when x = 5,

Answer 1

Answer:

y = 6

Step-by-step explanation:

y=  

x

k

​

  [as y various inversaly with x]

y=9;x=2

k=yx=9×2

k=18

y=  

x

18

​

 

when x=3  y=  

3

18

​

 

y=6