A bag contains six red and 10 black marbles if that if you pick up a marble from the bag what is the probability that the marble will be black

10/16 because you have to add the red and black together

Total marbles: 16

Red marbles: 6

Black marbles: 10

The answer would be out of 16 cause that’s the total amount of marbles. Then the largest number of marbles in the bag is the black marbles so the answer is 10/16