A bag contains 5 blue marbles, 2 black marbles, and 3 red marbles. A marble is randomly drawn from the bag. What is the probability of not drawing a black marble
80% Add up the marbles. 10 marbles. Divide the total amount of marbles by the number of blue and red marbles. That should equal 20%. That would be the probability of drawing a black marble. So, 80% is the answer
