Question

Viki makes a shade of green icing for her cake by using 3 drops of yellow food coloring for every 4 drops of blue food coloring. If Viki uses 12 drops of yellow food coloring for her icing, how many drops of blue food coloring would she need to use to make the same shade of green?

Answer 1

Viki needs to use 16 drops of blue food coloring to make the same shade of green.
Hope this helps!!

Answer 2

She needs 16 drops of blue food coloring.

Explanation:

We are given that,

Drops of yellow food coloring used = 3

Drops of blue food coloring used = 4

So, the ratio of yellow food coloring to the blue food coloring =
`(3)/(4)`

It is required to find the drops of blue food coloring if she uses 12 drops of yellow food coloring.

Let the drops of blue food coloring = x.

So, we have,

`(3)/(4)=(12)/(x)`

i.e.
`x=(12* 4)/(3)`

i.e. x = 4 × 4

i.e. x = 16

Thus, she needs 16 drops of blue food coloring.