Nicole pulls out a colored marble out of a bowl at random. There are 140 marbles in the bowl of which 90 are black 20 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.

Answer 1

The probability that Nicole will pull a red marble out of the bowl can be calculated by dividing the number of red marbles by the total number of marbles in the bowl.

Number of red marbles = 140 - (90 black + 20 white) = 30
Total number of marbles = 140

Therefore, the probability of pulling a red marble is:
P(red) = Number of red marbles / Total number of marbles
P(red) = 30 / 140
P(red) = 0.2143 or approximately 21.43%