Question

It all
4. If x and y vary inversely and y= 45. Find x when constant of variation = 9.​

Answer 1

Step-by-step explanation:

If x and y vary inversely then,

   xy=k (constant)

∴ When,

⇒ xy = 45×x = k= 9 (constant)

⇒ 45×x = 9

⇒  x = 9/45

       = 1/5 or 0.2 (Ans)