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Mathematics 19 Online
OpenStudy (anonymous):

A box contains 15 cards. There are 5 red cards labeled 1, 2, 3, 4, and 5. There are 5 blue cards labeled 1, 2, 3, 4, and 5. There are 5 green cards labeled 1, 2, 3, 4, and 5. One card is drawn from the box. What is the probability that it is a green card or a red card with a 5?

OpenStudy (anonymous):

i dont know

OpenStudy (amistre64):

how many green cards have a 5?

OpenStudy (anonymous):

1

OpenStudy (amistre64):

err, i might be reading it wrong. a (green card with a 5) or (red card with a 5) is prolly wrong on my part a (green card) or (red card with a 5) seems better

OpenStudy (amistre64):

so, we need to know how many green cards there are, and how many red 5s

OpenStudy (anonymous):

bye

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