Nicole pulls a colored marble out of a 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 describe the probability that she will pull a red marble out of the bowl. Show your work.(4 points)\
The total number of marbles in the bowl is 120.
The number of red marbles in the bowl is 120 - 80 - 28 = 12.
Therefore, the probability that Nicole will pull a red marble out of the bowl is 12/120 or 1/10.
This can also be expressed as 0.1 or 10%.
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To calculate the probability of pulling a red marble, we first need to determine the total number of red marbles in the bowl, which is 120 (total marbles) - 80 (black marbles) - 28 (white marbles) = 12 red marbles.
The probability of pulling a red marble can be calculated as the number of desired outcomes (red marbles) divided by the total number of outcomes. In this case, the probability is 12 (red marbles) / 120 (total marbles) = 1/10.
Therefore, the probability of Nicole pulling a red marble from the bowl is 1/10 or 0.1, which can also be represented as 10%. This means that there is a 10% chance that she will pull a red marble from the bowl.