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Zepler [3.9K]
2 years ago
6

Pippa has a box containing n pens.

Mathematics
1 answer:
Setler [38]2 years ago
6 0

The possible values of N from the given probability parameters is; N equals 15 or 21

<h3>How to Solve Algebra Problems?</h3>

We are told that;

Number of pens in the box = N

Let the number of red pens be x

Thus; number of black pens = x + 3

Thus;

x + x + 3 = N

x = (N - 3)/2

The probability that she will take a black pen followed by a red pen is;

P(she will take a black pen followed by a red pen) = (x + 3)/N * x/(N - 1)

Plugging in he relevant values and solving for N gives ;

Solving for N gives N equals 15 or 21

Read more about Algebra at; brainly.com/question/723406

#SPJ

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Base of prism is seemed to be a triangle

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2 years ago
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(are you sure your formula is correct? isn't it - 16t²?)

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t² + 4t + 12 = 0

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There is no solution of t

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3 years ago
Kayla is going on a trip. The mass of everything she is packing is 8.1 kg. She packs everything into a bag that has a mass when
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Answer:

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Read 2 more answers
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