The ratio 8:12 is equivalent to y:9. what is the value of y?​

y=8*9/12=6

Hope it helps

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You just write the expression as-

12/9=z

8z is your answer

To find z

12/9=1.3

8 x 1.3

10.4

hope it helps

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3