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OverLord2011 [107]
3 years ago
9

Pals helpppp

Mathematics
1 answer:
ryzh [129]3 years ago
8 0

Answer:

x =17

Step-by-step explanation:

(11x -26) + (− 4x+ 87) =180

7x + 61 =180

7x = 119

x =17

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A student wants to report on the number of movies her friends watch each week. The collected data are below: 2 14 1 2 0 1 0 2 Wh
Sunny_sXe [5.5K]

The student's friend watch 1.5 movies every week.

Data provided to us {2, 14, 1, 2, 0, 1, 0, 2}.

Number of data values = 8

Sorted or rearranged data {0, 0, 1, 1, 2, 2, 2, 14}

Median of the data provided;

Median is the mid point value of the data provided to us, but as in this case there are 8 data provided (even number of data), we will take the average of the 2 mid values of the data.

Mid Values = 1 and 2

\bold{Median=\dfrac{1+2}{2} = 1.5}

Mean of the data provided;

Mean=\dfrac{Sum\ of\ all\ data\ values}{Number\ of\ data\ values} \\\\Mean= \dfrac{(0+0+1+1+2+2+2+14)}{8}\\\\Mean=2.75

As we know, The data values provided are 0, 1 and 2, and there is 14 as well in the data which is the maximum value in the data provided to us but the value is far from the other data values provided to us. Therefore, the data value 14 is considered to be an outlier.

An outlier is the maximum value that increases the mean, which makes it larger than it should be.

If we were to compute the mean without the outlier,

Mean=\dfrac{Sum\ of\ all\ data\ values}{Number\ of\ data\ values} \\\\Mean= \dfrac{(0+0+1+1+2+2+2)}{7}\\\\Mean=1.1428

Now, we have understood that the mean is sensitive to outlier can be easily manipulated. thus, mean is not the right option to go for in this case.

Therefore, the median value of 1.5 is the right option.

Hence, the student's friend watch 1.5 movies every week.

To know more visit:

brainly.com/question/1363341

3 0
2 years ago
Read 2 more answers
a piece of ribbon that is 2/3 of a yard long is to be cut into 1/12 yard pieces. How many pieces will there be?
Darina [25.2K]
Length of the original ribbon = 2/3 yard
Length of the ribbon in which the actual ribbon has to be cut = 1/12 yards
The above information's are already given in the question. It is required to find the number of pieces that the ribbon can be cut with the length that is already mentioned.
Then
Number of pieces that will be there = (2/3)/(1/12)
                                                         = (2 * 12)/3
                                                         = 24/3
                                                         = 8
So the actual ribbon can be cut into 8 pieces and each piece will have a length of 1/12 yards. Hopefully the procedure for doing this problem is clear to you. this is the easiest method for attempting these kind of problems.
3 0
3 years ago
40+4x equivalent express
evablogger [386]

Answer:

do you mean expression??????

Please list me as brainliest so that I could level up!!! thanks

Step-by-step explanation:

40+4x=?????

40+4x = 60-20+6x-2x

40+4x = 40+4x

0=0

equivilant

4 0
3 years ago
Read 2 more answers
Sheila uses a dog food bag that contains 22 1/2
8_murik_8 [283]

Answer: i think 22 days

Step-by-step explanation:

i think that because you can feed you dog a cup a day.

7 0
2 years ago
Read 2 more answers
Please help me, I'm struggling with this question
ozzi

\underline{\boxed{\tt{\red{\:Solution}}}}

<u>Given</u><u>:</u><u>-</u>

  • f(x) = x²

<u>Evaluation</u><u>:</u><u>-</u>

e).

==> f(x) = x²

So,

==> f(3x) = (3x)² = 9x²

f).

==> f(x/2) = (x/2)² = x²/4

g).

==> 3f(x) = 3x²

h).

==> 2f(x-1)+5 = 2(x-1)²+5 = 2(x² + 1 - 2x ) + 5

= 5x² + 5 - 10x + 5

= 5x² - 10x + 10

3 0
2 years ago
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