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DochEvi [55]
3 years ago
11

The sum of 4 consecutive integers is 130

Mathematics
1 answer:
gogolik [260]3 years ago
7 0

x + x + 1 + x + 2 + x + 3 = 130

Combine like terms.

4x + 6 = 130

Subtract 6 from both sides.

4x = 124

Divide both sides by 4.

x = 31

<h3>The first digit is 31.</h3><h3>The second is 32.</h3><h3>The third is 33.</h3><h3>The fourth if 34.</h3>
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Answer:

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Step-by-step explanation:

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P(X=x) = p(1-p)^{x-1}\\

The problem asks us to find the probability of the first success on the 4th trial (given that the first subject to be a universal blood donor will be the fourth person selected)

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Substituting these parameters in the formula and solving it, we get:

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