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kyleescott9525
14.07.2019 •
Mathematics
Abag 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? a.1/7 b.2/9 c.1/14 d.7/36
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Ответ:
7/9*2/8= 7/36
your answer is D
Ответ:
21
Step-by-step explanation:
9 plus 10= 21