Question

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

Answer 1

Answer:

x = 7

Step-by-step explanation:

Given that,

x varies inversely as v.

When v = 3, x = 35.

We need to find x when v = 15

ATQ,

$x=\dfrac{k}{v}$

Put v = 3, x = 35,

$k=3\times 35\\\\k=105$

Now put v = 15 and k = 105

$x=\dfrac{105}{15}\\\\x=7$

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