14-02-2020
Mathematics

contestada

A bag contains 9 marbles: 4 are green, 2 are red, and 3 are blue Yoko chooses a marble at random, and without putting it back, chooses another one at
random. What is the probability that the first marble is red and the second is blue? Write your answer as a fraction in simplest form.

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sarge9023 sarge9023

14-02-2020

Answer:

1/12

Step-by-step explanation:

Probability of first marble being red is 2/9.

Then since he is not replacing the marble, there is only 8 marbles left in the bag. So the probability of choosing blue is 3/8. Then you multiply 2/9 × 3/8 = 6/72.

In simplest form: 1/12

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