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Soloha48 [4]
3 years ago
6

Add 5 to me then you divide by 7 if you add 12 then subtract 7 you get 10 what number am i

Mathematics
2 answers:
Gnom [1K]3 years ago
3 0

Answer:

x+5=x÷7+12=x-7=10 it is 30

WITCHER [35]3 years ago
3 0

Answer:

30

Step-by-step explanation:

<u>Given number is x, then:</u>

  • (x + 5) ÷ 7 + 12 - 7 = 10
  • (x + 5) ÷ 7 + 5= 10
  • (x + 5) ÷ 7 = 5
  • x + 5 = 5*7
  • x + 5 = 35
  • x = 35 - 5
  • x = 30

The number is 30

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Helga [31]

Answer:

y=-1/2x+2

Step-by-step explanation:

y-y1=m(x-x1)

y-3=-1/2(x-(-2))

y-3=-1/2(x+2)

y=-1/2x-2/2+3

y=-1/2x-1+3

y=-1/2x+2

5 0
2 years ago
Choose all of the equations that have the solution x = -
padilas [110]

Answer:

x - = answer: x = +

x - = - answerx = - +

x + = - answer x = -

+x = answer x =

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4 0
3 years ago
mrs chambers is 62 years old and plans to retire. over her life she earned an average of $2,500 per month after adjusting for in
antiseptic1488 [7]

Answer: 60

Step-by-step explanation:

4 0
2 years ago
Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a per
Step2247 [10]

A scatter diagram has points that show the relationship between two sets of data.

We have the following data,

\left\begin{array}{ccccccc}\mathrm{x}&3&7&15&32&74\\\mathrm{y}&40&35&30&25&17\end{array}\right

where <em>x</em> is the average number of employees in a group health insurance plan and <em>y</em> is the average administrative cost as a percentage of claims.

To make a scatter diagram you must, draw a graph with the independent variable on the horizontal axis (<em>in this case x</em>) and the dependent variable on the vertical axis (<em>in this case y</em>). For each pair of data, put a dot or a symbol where the x-axis value intersects the y-axis value.

Linear regression is a way to describe a relationship between two variables through an equation of a straight line, called line of best fit, that most closely models this relationship.

To find the line of best fit for the points, follow these steps:

Step 1: Find X\cdot Y and X\cdot X as it was done in the below table.

Step 2: Find the sum of every column:

\sum{X} = 131 ~,~ \sum{Y} = 147 ~,~ \sum{X \cdot Y} = 2873 ~,~ \sum{X^2} = 6783

Step 3: Use the following equations to find intercept a and slope b:

\begin{aligned}        a &= \frac{\sum{Y} \cdot \sum{X^2} - \sum{X} \cdot \sum{XY} }{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} =             \frac{ 147 \cdot 6783 - 131 \cdot 2873}{ 5 \cdot 6783 - 131^2} \approx 37.05 \\ \\b &= \frac{ n \cdot \sum{XY} - \sum{X} \cdot \sum{Y}}{n \cdot \sum{X^2} - \left(\sum{X}\right)^2}        = \frac{ 5 \cdot 2873 - 131 \cdot 147 }{ 5 \cdot 6783 - \left( 131 \right)^2} \approx -0.292\end{aligned}

Step 4: Assemble the equation of a line

\begin{aligned} y~&=~a ~+~ b \cdot x \\y~&=~37.05 ~-~ 0.292 \cdot x\end{aligned}

6 0
3 years ago
Find the solution set of this inequality. Select<br> the correct graph.<br> |-8x+4|&gt;12
scoundrel [369]

Answer:

The first option is correct

Step-by-step explanation:

Hope it is helpful....

3 0
3 years ago
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