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4 years ago

3. (07.04)

Mathematics

1 answer:

Naddik [55]4 years ago

5 0

Answer:

The probability that an applicant does not get a job if he or she has an interview is 20%.

Step-by-step explanation:

If the applicant has been interviewed, then she/he belongs to the group of 20 people that had an interview.
16 of the 20 people who were interviewed were offered a job, which means that 4 of the 20 people interviewed were not offered a job.
Then, 4/20= 20% of the people who were intervied did not get a job, which means that the <u>probability that an applicant does not get a job if he/she were interviewed is 20%</u>.
Pat attention: this probability results from analysing the probability of getting a job once you have had an interview (this condition restricts our attention to the group of 20 people who had an interview, and not to the hole group of 500 people who did apply for the job).

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3 years ago

Bob’s age is 15 years less than half his father’s age. In six years his father’s age will be eleven years more than triple Bob’s

d1i1m1o1n [39]

His father's age is 44 years

Step-by-step explanation:

The given is:

Bob’s age is 15 years less than half his father’s age
In six years his father’s age will be eleven years more than triple Bob’s age

We need to find his father’s age now

Assume that the Father's age is x years

∵ The father's age is x years

∵ Bob’s age is 15 years less than half his father’s age

- That means multiply x by half and subtract 15 from it

∴ Bob's age = $\frac{1}{2}$ x - 15

In six years

The father's age = x + 6

The Bob's age = $\frac{1}{2}$ x - 15 + 6 = $\frac{1}{2}$ x - 9

∵ In six years his father’s age will be eleven years more than

triple Bob’s age

- That means equate (x + 6) by 3 times Bob's age and add 11

to the product

∴ x + 6 = 3( $\frac{1}{2}$ x - 9) + 11

- Simplify the right hand side

∴ x + 6 = $\frac{3}{2}$ x - 27 + 11

- Add like terms in the right hand side

∴ x + 6 = $\frac{3}{2}$ x -16

- Subtract 6 from both sides

∴ x = $\frac{3}{2}$ x - 22

- Subtract $\frac{3}{2}$ x from both sides

∴ $\frac{-1}{2}$ x = -22

- Divide both sides by $\frac{-1}{2}$

∴ x = 44

His father's age is 44 years

Learn more;

You can learn more about the world problems in brainly.com/question/12148432

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3 years ago

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Answer:

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Step-by-step explanation:

either pick the generic line in slope-intercept form

$y = mx + q$

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Between the two points you get that when x increases (from 2 to 5) by 3 units, y decreases (from -1 to -3) by 2 units. You can rule out the first two options since the slope cannot be an integer. from the other 2, try x=5 into both to see which one gives -3 for y.

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2 years ago

How many natural numbers lie between 75² and 76²

vodomira [7]

Answer:

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Therefore, there are 151 natural numbers between $75^{2}$ and $76^{2}$

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3 years ago