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Nastasia [14]
3 years ago
9

A bag contains 5 white, 3 black, and 2 green balls. Balls are picked at random.

Mathematics
1 answer:
Soloha48 [4]3 years ago
6 0

Answer:

look down there

Step-by-step explanation:

First ball:

Probability of drawing a white ball is 5/8

Probability of drawing a black ball is 3/8

Second ball:

This depends on the first ball drawn, lets say you drew a white ball initially, 4 white balls are left out of 7 balls in total. The probability of a white ball in the second pick is 4/7.

Total probability of drawing two white balls is 5/8*4/7 (since they are independent events).

If you picked a black ball initially, picking another black ball would have a probability of 2/7, on similar grounds , total prob for 2 blacks would be 3/8*2/7.

The probability that you pick 2 balls of same color is (5/14 + 3/28) = 13/28. (Since they are mutually exclusive events)

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Answer:

Kevin is going to be able to have enough money for the concert the fastest

Philip needs at least 4 weeks

Kevin needs at least 3 weeks

Step-by-step explanation:

<u>Philip</u>

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Let's call x to the number of weeks Philip needs to reach $225.

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x = 3.43

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<u>Kevin</u>

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67.5*y + 30 = 225

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y = 195/67.5

y = 2.9

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3 years ago
How do I write 3478 as word form if 3 is in the hundreds place?
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Answer:

5 seconds it will hit the water.

Step-by-step explanation:

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