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shepuryov [24]
3 years ago
6

I will be given brainliest!! 2(x + 2) + 8 = 6 Solve this equation and show all work.

Mathematics
2 answers:
arlik [135]3 years ago
8 0
So distribute
2x+2+8=6
add like terms
2x+10=6
-10 -10
2x=-4
---------
2. 2
x=-2
Anastaziya [24]3 years ago
8 0
Step 1: distribute.
Multiply 2 time x and 2 times 2 that would give you 2x+4+8=6.

step 2: combine like terms.
Add 4 and 8 and it would give you 2x+12=6.

step 3: substract 12 in both sides.
6-12= -6 it would end up being (2x= -6).

step 4: divide 2 in both sides.
2 divided by -6 gives you -3.

Answer:
x= -3
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(A) It should choose High school Z for the most consistent attendance among its students.

(B) It should choose High school W with the highest average attendance.

Step-by-step explanation:

We are given the data for attendance in the table below, where Low represents the fewest days attended and High represents the most days attended for a single student.

<u>School</u>         Hight School W      High School X       High School Z

Low                       108                          112                          130

High                      180                          180                         180

Range                    72                           68                           50

Mean                    169                          160                          162

Median                 150                          124                          151

IQR                       47.5                         49.5                        39.5

S.D. (σ)                 29.5                         32.4                        27.5

(A) It is stated that the school district wants to award the school that has the most consistent attendance among its students.

Now, to check which high school should it choose; we will look for the standard deviation (σ) of each of the three schools because consistency is measured through standard deviation and the school with the lowest standard deviation means that it has the most consistent attendance among its students.

So, after looking at the standard deviation of all the three schools; the High School Z has the lowest standard deviation of 27.5.

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So, after looking at the Mean of all the three schools; the High School W has the highest average of 169.

This means that it should choose High school W with the highest average attendance.

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