Question

If R is inversely proportional to S and r=15 when S =12 what is the value of S when R =60​

Answer 1

s = 3

Explanation:

The variation above is written as

`R = (k)/(S)`

Where k is the constant of variation

when R = 15

S = 12

k = R × S

k = 15 × 12

k = 180

So the formula for the variation is

`R = (180)/(S)`

When R = 60

We have

`60 = (180)/(S)`

Cross multiply

That's

60S = 180

Divide both sides by 60

S = 3

Hope this helps you