The ratio of blue to yellow is 4:5 and there are 15 yellow how many blue is there? Question The ratio of blue to yellow is 4:5 and there are 15 yellow how many blue is there? in progress 0 Math Remi 7 mins 2021-11-25T02:41:02+00:00 2021-11-25T02:41:02+00:00 1 Answer 0

## Answers ( )

Answer: 12 blue marbles

Step-by-step explanation: Set up a proportion.

4/5 = x/15

Solve for x, the number of blue marbles. Cross multiply. You will get 60 = 5x

Divide by 5 on each side.

x = 12

There are 12 blue marbles.