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3 years ago

- 5y – 10x=45- 3y + 10x = -5

Mathematics

2 answers:

Vsevolod [243]3 years ago

4 0

Answer: y = -5; x = -2

Step-by-step explanation:

- 5y – 10x=45

- 3y + 10x = -5

Combining both equations

-8y = 40

y= 40/ -8

y = -5

Substitute y = -5 into any of the equations to get the value of x

-5 (-5) - 10x = 45

25 -10× = 45

-10x =45 -25

-10× = 20

Divide both sides by -10

x = -2

Mark as brainliest please

Archy [21]3 years ago

3 0

Answer y= -5 x = -2

Step-by-step explanation:

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Bogdan [553]

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Step-by-step explanation:

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iVinArrow [24]

The number of lines and triangles illustrates combination

36 lines can be drawn to join the nine points
84 triangles can be drawn using the nine points

<h3>The number of lines that can be drawn</h3>

The given parameters are:

Total points, n = 9

Total points on each line, r = 2

The number of lines that can be drawn is then calculated using the following combination formula

Lines = nCr

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<h3>The number of triangles that can be drawn</h3>

The given parameters are:

Total points, n = 9

Total points on each triangle, r = 3

The number of triangles that can be drawn is then calculated using the following combination formula

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- 5y – 10x=45- 3y + 10x = -5​

- 5y – 10x=45- 3y + 10x = -5