Question

Y is directly proportional to x when y = 30, x = 6 work out the value of y when x = 12

Answer 1

Step-by-step explanation:

it means y is 5 times of x and put value of x =12 and get value of y.

Answer 2

y=kx

30=k×6

k= 5

Now taking x =12

y=kx

y= 5×12

y=60

Hope this helps