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GarryVolchara [31]
3 years ago
10

Need help please due soon!

Mathematics
1 answer:
Marina CMI [18]3 years ago
3 0
143 because you multiply by the scale factor of 13
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What is the solution to the system of equations? 3x-6y=-12 " " x-2y=10 Use the substitution method to justify that the given sys
Thepotemich [5.8K]

The two lines in this system of equations are parallel

Step-by-step explanation:

Let us revise the relation between 2 lines

  • If the system of linear equations has one solution, then the two line are intersected
  • If the system of linear equations has no solution, then the two line are parallel
  • If the system of linear equations has many solutions, then the two line are coincide (over each other)

∵ The system of equation is

3x - 6y = -12 ⇒ (1)

x - 2y = 10 ⇒ (2)

To solve the system using the substitution method, find x in terms of y in equation (2)

∵ x - 2y = 10

- Add 2y to both sides

∴ x = 2y + 10 ⇒ (3)

Substitute x in equation (1) by equation (3)

∵ 3(2y + 10) - 6y = -12

- Simplify the left hand side

∴ 6y + 30 - 6y = -12

- Add like terms in the left hand side

∴ 30 = -12

∴ The left hand side ≠ the right hand side

∴ There is no solution for the system of equations

∴ The system of equations represents two parallel lines

The two lines in this system of equations are parallel

Learn more:

You can learn more about the equations of parallel lines in brainly.com/question/8628615

#LearnwithBrainly

6 0
3 years ago
What 2 numbers add to -3 and multiply to 2
serg [7]
We need to look at factors of 2, which are only 2 and 1... How do we get them to add to -3? Well, they have to be negative.

-2 + -1 = -3

What about the multiplication? A negative × a negative = a positive, so

-2 × -1 = 2

So your answer is

-2 and -1
6 0
3 years ago
7/19 en numero decimal​
Nataly [62]

Answer:   0.368421053

Step-by-step explanation:  19/7=0.368412053 :-)

5 0
3 years ago
Nate runs 5 miles 8 miles each week. Write an expression for the number of miles he runs in N weeks. Find the number of miles Na
777dan777 [17]

Answer:

?=200

Step-by-step explanation:

5*8=40

40*5=?

8 0
3 years ago
The sum of 5.9 and -7.2 is <br>positive <br>zero <br>negative​
Thepotemich [5.8K]

Answer:

Negative

Step-by-step explanation:

It would be -1.3. Because you know? You add?

4 0
3 years ago
Read 2 more answers
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