Posted by **Sarah** on Monday, April 9, 2012 at 4:35pm.

A bag of marbles contains 5 red, 12 blue and 5 yellow. What is the ratio of red marbles to non red marbles?

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**Ms. Sue**, Monday, April 9, 2012 at 4:48pm
5/17

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**ExplanationCentral**, Monday, April 9, 2012 at 5:48pm
Non red marbles are 12 + 5 = 17.

So the ratio is 5/17.

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**Kristen**, Tuesday, April 10, 2012 at 8:56am
A Bag contains 3 blue marbles, 2 red marbles, and 4 green marbles. Mark reaches in and randomly selects a marble. He replaces it, and randomly selects another. What is the probability that both marbles were the same color? What is the probability that 1 was red and the other was green?

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