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alexdok [17]
3 years ago
15

Complete the solution of the equation. find the value of y when x equals -4 5x+2y= -40

Mathematics
1 answer:
jonny [76]3 years ago
3 0

Answer: y= -10

Step-by-step explanation:

* Hopefully this helps:) Mark me the brainliest.

<em>∞ 234483279c20∞</em>

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The owner of Original Italian Pizza restaurant chain wants to understand which variable most strongly influences the sales of hi
tino4ka555 [31]

The linear regression model gives mathematical relationship between two variables, the dependent<em> and </em>independent<em> variables</em>. The linear models between the <em>quantity sold and the variables average price, disposable income and monthly advertising are</em> :

  • <em>y = - 4713.46x + 117763</em>
  • <em>y = 2.94x - 58384</em>
  • <em>y = - 1.75x - 32655</em>

To create a linear model using the data given, we use technology such as a excel or a linear regression calculator :

The linear model created using a linear regression calculator between each of the independent variables and quantity sold are :

<u>Average price of deep - dish and Quantity sold :</u>

  • Average price of deep - dish pizza(X)
  • Quantity sold (Y)

y = - 4713.46x + 117763

<u>Disposable income and Quantity sold</u> :

  • Disposable income (X)
  • Quantity sold (Y)

y = 2.94x - 58384

<u>Monthly advertising expenditure and Quantity sold</u> :

  • Monthly advertising cost (X)
  • Quantity sold (Y)

y = - 1.75x - 32655

Learn more :brainly.com/question/18405415

7 0
2 years ago
Can someone help me solve this please?​
Art [367]

Answer:

W { 2,3}

Step-by-step explanation:

The elements in W are the integers between  2 and 4 and including 2

That would be 2 and 3

W { 2,3}

3 0
3 years ago
How do I solve this .... question in the image. <br><br>thank you​
dezoksy [38]

Answer:

Below

Step-by-step explanation:

● x-20 = y+20 (1)

● 2(y-22) = x+22 (2)

This is a system of simulataneous equations

Let's simplify the expressions first

● x -20 = y + 20 (1)

Add 20 to both sides

● x -20 + 20 = y+20 +20

● x = y + 40 (1)

● 2(y-22) = x+22 (2)

● 2y - 44 = x +22

Substrat 22 from both sides

● 2y-44-22 = x+22-22

● 2y -66 = x (2)

This is the new system:

● x = y+40 (1)

● x = 2y-66 (2)

Substract (2) from (1)

● x-x = y+40-(2y-66)

● y+40-2y+66 = 0

● -y +106 = 0

● y = 106

Replace y with 106 in (1)

● x = y +40

● x = 106+40

● x = 146

So the solutions are (146,106)

8 0
3 years ago
Committee of 7 students is to be formed from 10 ee students, 12 cs students and 8 math students. it is required that at least tw
gtnhenbr [62]
First, You Do 10 and 12 in the parentheses, then subtract 8 and multiply 7.  Then This Equals 146. Hope this helps :)

5 0
3 years ago
The solution for the system equations 8x-6y=-32 and -8x+5y=36
Ghella [55]

Answer:

x=47, y=68

Step-by-step explanation:

Add the two equations. Then we get

-y=-68

y=68

Substituting the value of y in the first equation,

8x-6(68)=-32

8x-408=-32

8x=376

x=47

6 0
3 years ago
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