MATHEMATICS HIGH SCHOOL

At Southside Middle School, 20% of the students play an instrument. There are 305 students. How many students play an instrument?/

Answers

Answer 1

Answer:

Answer:

61 students

Step-by-step explanation:

When finding the percentage of a number, you can simply cross multiply and divide:

we can remove the percentage symbol…

$20*305=\n 6100$

Now 6100 divided by 100 is:

hope this helps!

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Eqyivalent expresion to 3√m^2n^5

Answers

The first step to solving this expression is to factor out the perfect cube
$\sqrt[3]{m^(2) n^(3) X n^(2) }$
The root of a product is equal to the product of the roots of each factor. This will make the expression look like the following:
$\sqrt[3]{ n^(3) }$ $\sqrt[3]{ m^(2) n^(2) }$
Finally,, reduce the index of the radical and exponent with 3
n $\sqrt[3]{ m^(2) n^(2) }$
This means that the correct answer to your question is n $\sqrt[3]{ m^(2) n^(2) }$ .
Let me know if you have any further questions
:)

The human resources manager at a company records the length, in hours, of one shift at work, X. He creates the probability distribution below. What is the probability that a worker chosen at random works at least 8 hours?

Answers

With the created probability distribution below, the answer to the question you have presented above would be .6. The probability that a worker chosen at random works at least 8 hours would be .6.

The probability that a worker chosen at random works at least 8 hours is 0.84

Data obtained from the question

Probability of 6 hours = 0.02
Probability of 7 hours = 0.11
Probability of 8 hours = 0.61
Probability of 9 hours = 0.15
Probability of 10 hours = 0.08
Probability ofatleast8hours=?

How to determine the probability of at least 8 hours

At least 8 hours simply means 8 hours and above

Thus, the probability of at least 8 hours can be obtained as illustrated below:

P(At least 8 hours) = P(8) + P(9) + P(10)

P(At least 8 hours) = 0.61 + 0.15 + 0.08

P(At least 8 hours) =0.84

Learn more about probability:

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Suppose you choose a marble from a bag containing 3 red marbles, 3 white marbles, and 5 blue marbles. You return the first marble to the bag and then choose again. Find P(red and blue).

Answers

The answer is 15/121.

Since we have red AND blue, that means that both of these events occur, so we will use the multiplication rule and multiply these two probabilities:

- A probability of choosing a red marble: 3/11. (because there are 3 marbles out of total 11 marbles)
- A probability of choosing a blue marble after the red one: 5/11. (because there are 3 marbles out of total 11 marbles; there are 11 in total again because the first marble has been returned)

So, P(red and blue) is 3/11 * 5/11 = (3*5)/(11*11) = 15/121

In the inverse variation function, what happens to the output when the function's input value is divided by 5?

Answers

Answer:

The output value will be multiplied by 5.

Step-by-step explanation:

The equation for inverse variation is given by :-

$k=yx$

$y=(k)/(x)$ , where x is representing input values and y representing output values.

If input value is divided by 5 (i.e. $x_1=(x)/(5)$ ), then the above equation will be

$y_1=(k)/((x)/(5))\n\n\Rightarrow y_1=5((k)/(x))\n\n\Rightarrow y_1=5y$

Thus, when the function's input value is divided by 5 then the output value will be multiplied by 5.

the output is multiplied by 5....................

Help pleaseGiven the sets M = {5, 6, 7, 8, 9} and N = {6, 8, 10, 12, 14}, the set M∩N is identified by which notation below?

A- {6, 8}

B- {5, 6, 6, 7, 8, 8, 10, 12, 14}

C- {5, 6, 7, 8, 9, 10, 12, 14}

D- ø

Answers

The symbol ∩ means the "intersection" of two sets. In other words, it is the set of terms that are found in both sets. In the case of M∩N, the only common terms are {6,8}, making choice A the correct answer.

-2094-67
Help!!!!!!!!!

Answers

Answer:

−2161

Step-by-step explanation:

Subtract 67 from -2094

If you want me to show work, let me know!

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20 points pls help someone