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mallyosburn
08.03.2021 •
Mathematics
Is 7x - 2 equivalent to 5x
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Ответ:
Go to calculator soup it will answer your questions
Step-by-step explanation:
Ответ:
0.2727 = 27.27% probability that both are red.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this question, the order in which the marbles are selected is not important. So we use the combinations formula to solve.
Combinations formula:
Desired outcomes:
2 red marbles, from a set of 18. So
Total outcomes:
Two marbles from a set of 18 + 16 = 34. So
Probability:
0.2727 = 27.27% probability that both are red.