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zhenek [66]
2 years ago
10

1. At which ordered pair on a graph will the following system of a linear equations intersect?

Mathematics
1 answer:
Gekata [30.6K]2 years ago
6 0

Answer:

D. (-7, -9)

Step-by-step explanation:

<u>Equation 1</u> : -5x + 5y = -10

<u>Equation 2</u> : -3x + 2y = 3

<u>Multiply Equation 1 by 2 and Equation 2 by 5.</u>

  • -10x + 10y = -20 [Equation 3]
  • -15x + 10y = 15 [Equation 4]

<u>Subtract Equation 4 from Equation 3.</u>

  • -10x + 10y + 15x - 10y = -20 - 15
  • 5x = -35
  • x = -7

  • -3(-7) + 2y = 3
  • 2y = -18
  • y = -9

<u>Solution</u>

  • (-7, -9)
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If anyone could give me the answers to all of these it would rlly help alot♥️♥️♥️
Maslowich
Answers:
- All Are Rounded to the Tenth (If needed)

1) 5
2) 9
3) 5
4) 10
5) 9.3
6) 8.1
7) 4.7
8) 12

Hope this helps!
6 0
2 years ago
Drag each tile to the table to multiply each row heading by each column heading
weeeeeb [17]

Answer:

multiplication by d=> 2d^3, 11d^2, -4d

multiplication by -9=>-18d^2,-99d, 36

The answers are in order from left to right.

Step-by-step explanation:

mark me as brainliest plz

4 0
3 years ago
Read 2 more answers
PLEASE HELP!!<br>What is the measure of angle x? ​
lesya692 [45]

Answer:

54

Step-by-step explanation:

90 +36 = 126

There is 180 degrees in a triangle.

180 - 126 = 54

7 0
3 years ago
Write an equation y is 20% what is x
lisabon 2012 [21]

Answer:

x + .20 = 1

Step-by-step explanation:

The equation would be x + .20= 1, or 1.00, because if you turn 20% into a decimal, it becomes .20. The total you are trying to find is 1 whole, in which this case it would simply be one as there is no other information. The x is first as if you had the .20 first, you would have to divide each side by .20, which would make x = 5, and that would not make sense.

Finding X: To find, subtract on each side by .20 due to the fact you are adding and need to do the opposite, .20-.20 cancels out and 1.00-.20 is .80, so you are left with x=.80

4 0
3 years ago
I need more assistance :D Instructions: Using the image, find the distance between the points given on the graph.
lina2011 [118]

Answer:

I usually explain even in the answer.

So we use som\sqrt{x}ething called distance formula which is branched of Pythagorean theorem.

But we dont need to as it just makes it more complicated. We need to find split into 2 vectors, one vertical, and horizontal. The horizontal is 5 long.

The vertical is 1, you can find them by calculating how long is it and how tall.

Use pythogorean theorem from the formula and do 5^2+1^2 = c^2

25+1 = 26, so the answer is √26

I am pretty sure answer is right. Always take abolute value

<u>√26</u>

8 0
3 years ago
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