Question

If x varies inversely as v, and x = 35 when v = 3, find x when v = 15

Answer 1

x = 7

Explanation:

Given that,

x varies inversely as v.

When v = 3, x = 35.

We need to find x when v = 15

ATQ,

`x=(k)/(v)`

Put v = 3, x = 35,

`k=3* 35\\\\k=105`

Now put v = 15 and k = 105

`x=(105)/(15)\\\\x=7`

So, the required value of x is equal to 7.