Math

Can someone please explain how to solve this problem?

A bag contains 6 blue marbles, 10 red marbles, and 9 green marbles. If two marbles are drawn at random without replacement, what is the probability that two green marbles are drawn?

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  1. total marbles = 6 + 10 + 9 = 25

    first draw 9/25
    second draw 8/24
    so
    (9/25)(1/3) = 9/75

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    posted by Damon
  2. A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

    A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

    A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

    A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

    A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

    A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

    A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

    A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

    A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

    A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

    A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn.

    What is the probability of selecting a purple marble and then a white marble?

    What is the probability of selecting two white marbles?

    Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.

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