Question

If you have a bag of marbles 2 red 5 white and 3 blue and you put back the first one you get.what is the probability of getting a red and blue marble

Answer 1

there are 10 total marbles (add up all the colors)
there are 2 red marbles (that how you get 2/10)

Answer 2

if you put back the marble after you get it, there are still ten marbles
there are 3 blue marbles (that's how you get 3/10)

Answer 3

add that to got 5/10 and simplify it to get 1/2 and that's your answer

Answer 4

hope that helped