write the direct variation equations, then find y when x =5. show all work and explain.

y=20 when x=5.

Step-by-step explanation:

The easy way to solve this problem is to find what x was multiplied by, and then multiply the y by the same number.

To find the amount x was changed by, we can divide the result by the initial value.

Like this:  5/3=1.666667

Now we just need to multiply the initial y by 1.66667 to get the result.

12*1.6666667=20.

y=20 when x=5.

Hope this helps!

y=20

Step-by-step explanation:

Direct variation is given by

y = kx

When y =12 x =3

12 = k3

Divide each side by 3

12/3 = 3k/3

4=k

The equation is

y = 4x

Now find y when x = 4

y = 4(5)

y =20

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3