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AysviL [449]
2 years ago
10

Adison earned $25 mowing her neighbors lawn. Then she loaned her friend $18 and got $50 from her grandmother. She now has $86. H

ow much money did Adison have to begin with
Mathematics
1 answer:
Marat540 [252]2 years ago
4 0
29 dollars because 25-18+50=57 and 86-57=29
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A company with n employees publishes an internal calendar, where each day lists the employees having a birthday that day. What i
lutik1710 [3]

Answer: 1-(\frac{364}{365})^n

Step-by-step explanation:

Binomial probability formula :-

P(x)=^nC_xp^x(1-p)^x, where P(x) is the probability of getting success in x trials, n is the total number of trials and p is the probability of getting success in each trial.

We assume that the total number of days in a particular year are 365.

Then , the probability for each employee to have birthday on a certain day :

p=\dfrac{1}{365}

Given : The number of employee in the company = n

Then, the probability there is at least one day in a year when nobody has a birthday is given by :-

P(x\geq1)=1-P(x

Hence, the probability there is at least one day in a year when nobody has a birthday =1-(\frac{364}{365})^n

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3 years ago
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Yuliya22 [10]

Answer:

Step-by-step explanation:

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143 + x = 180

x = 37

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2 years ago
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SVETLANKA909090 [29]

Answer: 5/2

Step-by-step explanation:

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2 years ago
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