Question

x varies inversely as y . x = 12 when y = 9.What is y when x = 4 ? *​

Answer 1

Answer:

27

Step-by-step explanation:

as x varies inversely as y

So we can write x × y = k

X ~ 1/y

transferring y to LHS

X × y ~ 1

so we can write

x1 × y1 = x2 × y2

12 × 9 = 4 × y2

y2 = 27