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dlinn [17]
2 years ago
14

Solve pls brainliest

Mathematics
1 answer:
aev [14]2 years ago
6 0

Answer: 11.14

Step-by-step explanation: This is right bro. 1000%

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Which statements are true about the ordered pair (−4, 0) and the system of equations?
stiv31 [10]

The true statements are:

The ordered pair (−4 , 0) is a solution to the first equation because it makes the first equation true ⇒ 1st answer

The ordered pair (−4 , 0) is a solution to the second equation because it makes the second equation true ⇒ 2nd answer

The ordered pair (−4, 0) is a solution to the system because it makes both equations true ⇒ 4th answer

Step-by-step explanation:

To prove that point (a , b) is a solution of an equation

  • Substitute x and y in the equation by a and b
  • If the left hand side is equal to the right hand side, then the point is a solution of the equation
  • If the left hand side doesn't equal the right hand side, the point is not a solution of the equation

∵ The system of equations is:

2x + y = -8 ⇒ (1)

x - y = -4 ⇒ (2)

The ordered pair is (-4 , 0)

Substitute x by -4 and y by 0 in each equation

∵ x = -4 and y = 0

∵ The left hand side in equation (1) is 2x + y

∵ 2(-4) + 0 = -8 + 0 = -8

∴ The left hand side = -8

∵ The right hand side = -8

∴ The left hand side = the right hand side

∴ (-4 , 0) is a solution of equation (1)

The ordered pair (−4 , 0) is a solution to the first equation because it makes the first equation true

∵ The left hand side in equation (2) is x - y

∵ (-4) - 0 = -4 - 0 = -4

∴ The left hand side = -4

∵ The right hand side = -4

∴ The left hand side = the right hand side

∴ (-4 , 0) is a solution of equation (2)

The ordered pair (−4 , 0) is a solution to the second equation because it makes the second equation true

∵ The ordered pair (-4 , 0) makes the two equations true

∴ The ordered pair (-4 , 0) is the solution of the system of equations

The ordered pair (−4, 0) is a solution to the system because it makes both equations true

Learn more:

You can learn more about the system of linear equations in brainly.com/question/6075514

#LearnwithBrainly

6 0
3 years ago
Please help me!!! I don't know!<br> txcfygvubhjnlkm
topjm [15]

Answer:

See explanation

Step-by-step explanation:

look photo

7 0
2 years ago
What is 1/3 of 3?? I can't seem to figure it out lol
raketka [301]
1/3*3
1

1 is 1/3 of 3 hope that helps
6 0
3 years ago
Could someone help me with 2, 9, 10, 11, 12 13, and 14?
shutvik [7]

Answer:

13.  (1) x + 8x = 32

14.  $337.5

Step-by-step explanation:

14. $270 x 0.25 = 67.5

270 + 67.5 = 337.5

I am sorry. I only got these-

7 0
3 years ago
Read 2 more answers
Find all numbers whose absolute value is 3
ratelena [41]
-3 and 3, both three away from 0
3 0
3 years ago
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