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matrenka [14]
3 years ago
13

The manager of a dress shop recorded the number of dresses sold during the week, the data is as follows:

Mathematics
2 answers:
Jobisdone [24]3 years ago
8 0

Answer:

1.67

Step-by-step explanation:

\frac{17 + 15 + 16 + 20 + 15 + 19}{6} = \frac{102}{6} = 17

distance from 17

17,  0

15,  2

16,  1

20, 3

15,  2

19,  2

\frac{0 + 2 + 1 + 3 + 2 + 2 }{6} = \frac{10}{6} =  1.67

AlladinOne [14]3 years ago
7 0

Answer: The answer is 1.67

Step-by-step explanation:

First, find the mean by adding all of the numbers and divide them by how many numbers there are, so 17+15+16+20+15+19=102 Then 102/6= 17. Then take the mean and subtract it by every number, and make sure it is the number’s absolute value.

17-17=0, 15-17=2, 16-17=1, 20-17=3, 15-17=2, 19-17=2. Then add all of those numbers and divide them by how many numbers there are. 0+2+1+3+2+2=10. 10/6=1.67

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8x+3y= 28 and 7x-3y=2<br>solve for x and y simontaniasly using elimination ​
EleoNora [17]

Answer:

x=2, y=4

Step-by-step explanation:

When using elimination, the objective is to elimate one variable. In this case, we see that "y" can easily be eliminated by adding the two equations together since you will get 3y + (-3y) which will eliminate y because the value would become 0, letting us solve for x.

\left \{ {{8x+3y=28} \atop {7x-3y=2}} \right. +\\

Then we get

15x =30, because the y's will eliminated, and 8x+7x is 15x, and 28+2 is 30.

Then divide by 15 on both sides and you get x=2

If x=2, then we can substitute that value into any of the previous given equations and find the value of y.

8×2 +3y = 28

16+3y=28

3y=12

y=4

So the answer to your system of equations would be x=2, and y=4

You can substitute the answers we found to see that they satisfy the equation.

Hope this helped.

6 0
3 years ago
9+19 - 12 + 12 + 12323 - 39
Alexxandr [17]

Answer : 12312

Step-by-step explanation : According to BODMAS, Addition (+) comes first

Hence --  9 + 19 + 12 + 12323 = 12363

               12363 - 12 - 39  = 12363 - 51

                                          = 12312

       

5 0
3 years ago
9) 1 = 0.99 + z? 10​
Sati [7]

Answer:

0.99+10=10.99

Step-by-step explanation:

7 0
3 years ago
How could i write 2.7 on a number line?
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There tried too draw it out of you

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Answer:

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Step-by-step explanation:


8 0
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