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olga55 [171]
3 years ago
6

Find the x and y for numbers 2 and. 3 thank you

Mathematics
1 answer:
OLEGan [10]3 years ago
5 0

Answer:

(0, 4 ) and (2, - 4 )

Step-by-step explanation:

(2)

3x + 4y = 16 → (1)

- 3x + 2y = 8 → (2)

Adding (1) and (2) term by term will eliminate the x- term

0 + 6y = 24

6y = 24 ( divide both sides by 6 )

y = 4

Substitute y = 4 into either of the 2 equations and solve for x

Substituting into (1)

3x + 4(4) = 16

3x + 16 = 16 ( subtract 16 from both sides )

3x = 0 , then

x = 0

solution is (0, 4 )

(3)

2x - 4y = 20 → (1)

5x + 4y = - 6 → (2)

Adding (1) and (2) term by term will eliminate the y- term

7x + 0 = 14

7x = 14 ( divide both sides by 7 )

x = 2

Substitute x = 2 into either of the 2 equations and solve for y

Substituting into (2)

5(2) + 4y = - 6

10 + 4y = - 6 ( subtract 10 from both sides )

4y = - 16 ( divide both sides by 4 )

y = - 4

solution is (2, - 4 )

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Answer:

Equation: 2x + 3x + 10 = 180

x = 34

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Step-by-step explanation:

The two angles add to 180, so set them equal to 180.

2x + 3x + 10 = 180

5x + 10 = 180

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Answer: There are 20 socks in the first case and there are 75 socks in the second case.

Step-by-step explanation:

Since we have given that

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3 years ago
there are 13 people on the bus, 4 people get off and 2 people get on, then 6 people get off, if there are 12 people on the bus,
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Find the equation for the line of best fit using the two points that are close to the line of best fit (2,70) and (4.5, 90)
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Given:

Two points that are close to the line of best fit are (2,70) and (4.5, 90).

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We know that, if a line passes through the two points, then the equation of line is

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