Nicole pulls a colored marble out of the bowl, choosing the marble at random. there are 120 marbles in the bowl, of which 80 are black, 28 are white, and the rest are red. Use words and numbers to decide the probability that she will pull a red marble out of the bowl. show your work

Answer 1

The total number of marbles in the bowl is 120.
Out of the total marbles, 80 are black, 28 are white, and the rest are red.

To find the probability of pulling a red marble, we first need to find out how many red marbles are in the bowl.
Red marbles = Total marbles - (Black marbles + White marbles)
Red marbles = 120 - (80 + 28) = 12

Therefore, the number of red marbles in the bowl is 12.

The probability of pulling a red marble can be calculated as:
Probability = Number of red marbles / Total number of marbles
Probability = 12 / 120 = 0.1

So, the probability that Nicole will pull a red marble out of the bowl is 0.1 or 10%.