3 years ago

PLEASE HELP ME ASAP!! Answers: undefined Negative Zero Positive

Mathematics

2 answers:

Sveta_85 [38]3 years ago

8 0

I think positive since is rising ....

<h3>Please mark me as brainliest ......</h3>

Firdavs [7]3 years ago

3 0

Positive since it’s rising :)

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To find 27x9 I find 27x10 and remove 1 group of 27

solniwko [45]

Answer:

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3 years ago

For each ordered pair determine whether it is a solution to the system of equations 2x-7y=8 -3x+2y=5

rodikova [14]

Answer:

The solution of this system of linear equations is $(x,y) = (-3,-2)$ .

Step-by-step explanation:

Let be the following system of linear equations:

$2\cdot x - 7\cdot y = 8$ (1)

$-3\cdot x + 2\cdot y = 5$ (2)

From (1) we clear $y$ :

$2\cdot x -8 = 7\cdot y$

$y = \frac{2\cdot x - 8}{7}$

And we apply this variable in (2):

$-3\cdot x+2\cdot \left(\frac{2\cdot x -8}{7} \right)= 5$

$-3\cdot x +\frac{4}{7} \cdot x -\frac{16}{7} = 5$

$-\frac{17}{7}\cdot x = \frac{51}{7}$

$x = -\frac{51}{17}$

$x = -3$

And the value of $y$ is:

$y = \frac{2\cdot (-3)-8}{7}$

$y = -\frac{14}{7}$

$y = -2$

The solution of this system of linear equations is $(x,y) = (-3,-2)$ .

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Step-by-step explanation:

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3 years ago

Read 2 more answers