Question

q.3:If x, y varies inversely and if y=4, when x=72, find the following:
a. the constant of variation
b. then value of y when X=97​

Answer 1

Answer:

a) the constant of variation k=288

b) y=2.97

Step-by-step explanation:

x, y varies inversely

let k is constant of variation)

Then  x = k/y-----------(1)

if y=4 then x=72

so 72=k/4

k=72*4=288

hence

a) the constant of variation k=288

=========================

b) Given x=97

then y=k/x from(1)

y=288/97=2.97