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Pachacha [2.7K]
2 years ago
6

The data 12, x, 24, 16, and 18 have a mean, average, of 15. Find the value of x. (Hint: Replace the values to determine x.) * Wh

at would the answer be ? Thank you:)))))
Mathematics
1 answer:
katrin [286]2 years ago
4 0

Answer: 23

Step-by-step explanation:Since mean is the amount of everything together and divided by the number there is, 15 times 5 numbers= 75 and 75-(12+24+16+18)=x.

Therefore x=23

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How do I find the answer?
11Alexandr11 [23.1K]
First simplify the number part, 14/2 = 7/1
then the x part, \frac{x}{x^ \frac{3}{4} } = x^ \frac{1}{4} 

y doesn't need to be simplified
then simplify the z part, z^-6 = z^6

put it all together...
7x^ \frac{1}{4}y^ \frac{1}{3} z^6
4 0
2 years ago
What is the average (arithmetic mean) of the first 90 measurements in a certain list of 92 measurements? (1) the average of the
marishachu [46]
The sum of all the measurements is just the average times the number.

\bar x = \frac{1}{n} \sum_{i=1}^n x_i

\sum_{i=1}^n x_i = n \bar x

So if the average of all 92 is 7 the sum of those is 92 \times 7

The average of the last two is 7.2 so their sum is 2 \times 7.2

That means the sum of the first 90 is 92 \times 7 - 2 \times 7.2

so the average of the first 90 is

 \dfrac{92 \times 7 - 2 \times 7.2}{90} = 6.99556 cm



7 0
3 years ago
Solve the following quadratic equation <br> 6x^+28x-2=2x-10
Nataliya [291]
Idk I’m sorry I just need points.
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4 0
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Solving Linear Equations: Variables on Both Sides I really need this please!
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Answer: x=-2/3

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