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zepelin [54]
1 year ago
5

I don’t understand this problem

Mathematics
1 answer:
Rina8888 [55]1 year ago
7 0

Answer:

Standard Deviation, σ = 6.5828058860438

Step-by-step explanation:

<u>Data Set:</u> 20, 11, 27, 13, 29, 20

The total numbers in the data set

Count, N = 6

The sum is all values in the data set is added up

20 + 11 + 27 + 13 + 29 + 20

Sum, Σx: 120

The mean is the sim / N

Mean, μ: 20

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-5(-3x+10)=30 what is x
Feliz [49]

Answer:

5.33333333...

Step-by-step explanation:

it will be like -5 out the bracket x - 3 x which gives you 15 then we'll check again - 5 then you times it by there 10 in the bracket and then it gives you 50 and then it will be there in 15 x - 50 equals to 30 then you take the -50 to the other side where there is 30

then it will be 15 x equals to 30 + 50 and then then 15 x equals to 8 and then you divide both of the sides with 15 then get your answer

-5 (-3x+10)=30

15x-50=30

15x=30+50

15x/15=80/15

x=5.33333...

3 0
2 years ago
Can you pls help me it’s timed
Lerok [7]

Answer:

The median is 22

Step-by-step explanation:

6 0
3 years ago
Owen and kenji are monkeys at a zoo. Owen weighs 5/6 as much as kenji. If owen weighs 90 pounds how much does kengi weigh
choli [55]
108 pounds,

90/5 = 18

18*6 = 108
5 0
3 years ago
Se vendieron un total de 430 boletos para la obra de teatro escolar. Los boletos eran o de adulto o de estudiante. Se vendieron
BartSMP [9]

Resolviendo un sistema de ecuaciones, veremos que se vendieron 250 boletos de adulto.

<h3>¿Cuántos boletos de adulto fueron vendidos?</h3>

Definamos las variables:

  • x = boletos de adulto vendidos.
  • y = boletos de estudiantes vendidos.

Se vendieron un total de 430 boletos, entonces:

x + y = 430

Y se vendieron 70 boletos de estudiante menos que boletos de adulto:

y = x - 70

Tenemos el sistema de ecuaciones:

x + y = 430

y = x - 70

Para resolverlo, podemos reemplazar la segunda ecuación en la primera:

x + y = 430

x + (x - 70) = 430

2x = 430 + 70 = 500

x = 500/2 = 250

Se vendieron 250 boletos de adulto.

Sí quieres aprender más sobre sistemas de ecuaciones:

brainly.com/question/13729904

#SPJ1

5 0
2 years ago
I really Need help solving this problem!
Paraphin [41]

Answer:

Hello,

Answer A : 11.2 ≤ X ≤ 29.2

Step-by-step explanation:

Z=\dfrac{X-20.2}{4.5} \\\\X=4.5*Z+20.2\\\\For\ Z=-2,  \ X=4.5*(-2)+20.2=11.2\\For\ Z=2,  \ X=4.5*2+20.2=29.2\\

8 0
2 years ago
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