Karen purchased a prepaid phone card for $15. Long distance calls cost 11 cents a minute using this card. Karen used her card on
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We know that the won 3/4. So that means that the remaining 1/4 is the games lost, which is 21.
To find the total games played, we simply multiply 21 by 4 to get 4/4, or the total games.
To find the total games played, we simply multiply 21 by 4 to get 4/4, or the total games.
Answer:
Step-by-step explanation:
Getting all three marbles of green color only happens if every draw is a green marble. On the first marble draw, the urn has 10 marbles in it, out of which 5 are green. So the probability of drawing a green marble on this first draw is
Then, once this has happened, the second draw also needs to be a green marble. At this point in the urn there are only 9 marbles left, and only 4 of them are green. So the probability of drawing a green marble at this point is
Afterwards, on the last draw, a green marble also needs to be drawn. At this point there are only 8 marbles left on the urn, and only 3 of them are green. So the probability of drawing a green marble on this last draw is
Therefore the probability of drawing all three marbles of green color is