Question

if x varies directly as a y and X = 22 when y equal to 12 find y when X equal to 11​

Answer 1

Answer:

Step-by-step explanation:

Do it yourself

Example-Q1 If y varies directly as x and if x=4 and y=12 find y when x=18

y varies directly as x" means y = kx

you do not know what k is yet, other than that it is some constant number.

Now plug in the given values, y=12 when x=4, in the equation

12 = 4k

=> k = 3

Now rewrite the equation with the k value you just found

y = 3k

Substitute 18 in place of x

y = 3(18)

y = 54