3 years ago

23= 7/9(6x-36)+9 solve for x x=__

Mathematics

2 answers:

dusya [7]3 years ago

8 0

I hope this helps you

Marina86 [1]3 years ago

5 0

What i don't get is where did 207 in the other answer, go

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41 - (-7)

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AleksandrR [38]

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Step-by-step explanation:

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2 years ago

Out of a group of 120 students that were surveyed about winter sports 28 said they ski 53 said they snowboard Sixteen of the stu

hjlf

Answer:

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Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

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In this question:

Event A: Ski

Event B: Snowboard.

28 out of 120 students ski:

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This means that $P(A \cap B) = \frac{16}{120} = 0.1333$

P ( snowboard I ski)

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.1333}{0.2333} = 0.5714$

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