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blsea [12.9K]
2 years ago
15

Ann worked 14 hours and earned a total of $108.50. How much did she earn per hour?

Mathematics
2 answers:
Delicious77 [7]2 years ago
5 0

Answer:

108.50 divided by 14= 7.75

Step-by-step explanation:

saw5 [17]2 years ago
4 0
Answer: 7.75 per hour
Explanation: you would divide 108.50 by 14 and that gives you 7.75
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1: False.

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5: False.

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Step-by-step explanation:

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Slope-Intercept Form
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Answer:

y = -2x + 3

Step-by-step explanation:

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What is the answer to this?
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Answer:

Up

Step-by-step explanation:

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2 years ago
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Approximately 14 percent of the population of Arizona is 65 years or older. A random sample of five persons from this population
Andreas93 [3]

Answer:

A)0.8533

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they are 65 or older, or they are not. The probability of a person being 65 or older is independent of any other person. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

14 percent of the population of Arizona is 65 years or older.

This means that p = 0.14

A random sample of five persons from this population is taken.

This means that n = 5

The probability that less than 2 of the 5 are 65 years or older is :

P(X < 2) = P(X = 0) + P(X = 1)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{5,0}.(0.14)^{0}.(0.86)^{5} = 0.4704

P(X = 1) = C_{5,1}.(0.14)^{1}.(0.86)^{4} = 0.3829

P(X < 2) = P(X = 0) + P(X = 1) = 0.4704 + 0.3829 = 0.8533

So the correct answer is:

A)0.8533

3 0
3 years ago
Can a smart brainstormer help me
lukranit [14]
The answer is .1391
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(If your confused, I just put this in a calculator)
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