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Natali [406]
2 years ago
7

If y varies directly as x and x= 15 when y = 5, find x when y= 9

Mathematics
1 answer:
dalvyx [7]2 years ago
7 0

Answer:

x = 27

Step-by-step explanation:

x = y x 3.

5 = y, x = 15.

5 x 3 = 15.

y = 9.

9 x 3 = 27.

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3 years ago
61% of men consider themselves professional baseball fans. you randomly select 10 men ask each if he considers himself a profess
Xelga [282]

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<h3>What is probability?</h3>

Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.

We have been given data as:

The number of randomly selected men, n = 10.

Probability of success, that a randomly selected man considers himself a professional fan, p = 61% or 0.61

Probability of failure, that a randomly selected man does not consider himself a professional fan is:

⇒ q = 1 − p = 1 − 0.61= 0.39

The probability that the number of men who consider themselves professional fans is:

⇒ ⁿcₓpˣqⁿ⁻ˣ

Substitute exactly x = 5

⇒ ¹⁰c₅(0.61)⁵(0.39)¹⁰⁻⁵

⇒ ¹⁰c₅(0.61)⁵(0.39)⁵

⇒ 0.1932

Therefore, the required probability is 0.1932.

Learn more about the probability here:

brainly.com/question/11234923

#SPJ4

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