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diamong [38]
3 years ago
9

A compound experiment consists of drawing at random twice without replacing from a jar with 3 red, 3 white, and 2 black marbles.

What is the probability of getting first a red and then a black marble?
Mathematics
1 answer:
Eddi Din [679]3 years ago
8 0
The solution to your problem about the probability <span>of getting first a red and then a black marble is as follows:

</span><span>(3 red / 8 total) * (2 black / 7 total) = 3/28 
</span>
Therefore, the probability of getting first a red and then a black marble is 3/28.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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The ratio of money in Obi's wallet to Rudy's wallet one day was 5:2.
mamaluj [8]

Answer:

The amount that Obi initially had was £20

Step-by-step explanation:

Let

x ----> amount that Obi initially has

y ----> amount that Rudy has

we know that

\frac{x}{y} =\frac{5}{2}

x=2.5y ----> equation A

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Solve the system by substitution

substitute equation A in equation B

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solve for y

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therefore

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Using elimination method, what will be the value of y after solving -x - y = 5 and -x + 4y = 15?
natka813 [3]

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Answer:

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Step-by-step explanation:

The variable x can be eliminated by subtracting the first equation from the second.

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Answer: i havent done this in a long long time but i think it may be

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Step-by-step explanation:

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