The probability of not drawing a black marble is 4/5
The probability of drawing a red marble is 3/10
<h3>What are the probabilities?</h3>
Probability determines the odds of the occurrence of a random event. The probability the event occurs is 1 and the probability that the event does not occur is 0.
Probability of not drawing a black marble = total marbles that are not black / total number of marbles
(5 + 3) / (5 + 3 + 2) = 8/10 = 4/5
The probability of drawing a red marble = total number of red marbles / total number of marbles
= 3/10
To learn more about probability, please check: brainly.com/question/13234031
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Answer:42 1/2
Step-by-step explanation:
2 1/2 + 20 + 20
So 20+20= 40 +2 and a half so the answer is 42 1/2
3/13 if I’m not mistaking or 0.23
Answer:
To simplify the expression let's multiply and divide by (8+5i) as follows:
'
Now, we have successfully removed the imaginary number from the denominator.
Answer:
2.5r D is the answer.
Step-by-step explanation:
It is 2.5 r because it makes the most sense for a real world situation like this.
