Question

A bag contains 3 red marbles, 4 blue marbles, and 5 white marbles. What is the probability of pulling out a white marble, and then a blue marble if none are replaced?

Answer 1

lets take it one step at a timie
how many marbles in the bag total?

Answer 2

12

Answer 3

ok and there are 5 white ones, so what is the probability that the first one selected is white?

Answer 4

5/12?

Answer 5

right
now lets hold on to that number for a minute
the white marble is gone, how many are left in the bag total?

Answer 6

7

Answer 7

hmm no only one white marble is gone, not all five

Answer 8

oh sorry 11?

Answer 9

right and 4 are blue, so what is the probability that the next one selected is blue?

Answer 10

4/11?

Answer 11

yes

Answer 12

take those two numbers we got and multiply them to get your answer

Answer 13

swag thank you

Answer 14

yw