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Ganezh [65]
3 years ago
15

A bag contains 2 yellow marbles and 5 red marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a

second marble is drawn. What is the probability that the first marble is red and the second one is yellow?
Mathematics
1 answer:
Sergio039 [100]3 years ago
3 0

Answer:

Number of red balls = 5  Number of orange balls = 2

Number of yellow balls = 1

Number of green balls = 2

Therefore total number of balls = 10.

Probability of getting a ball =   P(choosing orange ball) =  After picking an orange ball, we are left with 9 ballsP ( choosing a green ball) = P(choosing an orange marble and a green marble) = 0.04444 is the approximate probability of choosing an orange marble and a green marble.

Step-by-step explanation:

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Answer:

2.5h = 150 min.

Step-by-step explanation:

An hour is 60 minutes.

A half an hour is 30 minutes.

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2.5h = 150 min.

Hope this helps.

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Lightning strikes the earth more than 60 times per second. How many times would it strike in 3 minutes 15 seconds
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Step-by-step explanation:

First find the number of seconds in 3 minutes 15 seconds.

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