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andreyandreev [35.5K]
3 years ago
12

If f(x)=x-5 what is the value of x when f (x)=15

Mathematics
1 answer:
dezoksy [38]3 years ago
7 0

Answer:

f(x)=x-5

f(x)=x-5

15=x-5

15+5=x

20=x

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nasty-shy [4]

Answer:

$10 per kilogram

Step-by-step explanation:

To eliminate the decimals,multiply everything by 10

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1 kilo = $10 (40/4)

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The mathematics department of a college has 15 male professors, 9 female professors, 6 male teaching assistants, and 12 female t
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Given:

The number of male professors = 15.

The number of female professors = 9.

The number of male teaching assistants = 6.

The number of female teaching assistants = 12.

A person is selected randomly from the group.

Required:

We need to find the probability that the selected person is a professor or a male.

Explanation:

The total number of people in the group = 15+9+6+12 = 42

n(S) =The total number of people in the group

n(S)=42

Let A be the event that the selected person is a professor or a male.

The number of people who are professors or male = 15+9+6 = 30

n(A)= The number of people who are professors or male.

n(A)=30

Let P(A) be the probability that the selected person is a professor or a male.

P(A)=\frac{n(A)}{n(S)}P(A)=\frac{30}{42}P(A)=\frac{15}{21}=\frac{5}{7}

Final answer:

The probability that the selected person is a professor or a male is 5/7.

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Cal pays employees weekly. He would like to start paying them four times the weekly amount on a monthly basis. Is a month equiva
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