3 years ago

The ratio of blue to yellow is 4:5 and there are 15 yellow how many blue is there?

1 answer:

7 0

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.

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