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vitfil [10]
3 years ago
14

How many solutions does the system of equations below have? x − 4y = 6 2x − 8y = 12

Mathematics
1 answer:
bearhunter [10]3 years ago
8 0

Answer:

x = 4y + 6

Step-by-step explanation:

x-4y=6

2x-8y=12

multiply 2 on both side in equation 1, and multiple - on both side in equation 2:

2x-4x=12

-2x+8y=-12

so the equation becomes:

4y=0

y=0

put the value of y in both of the equations:

x=6 equation 1

x=6 equation 2

so,

x = x

then,

x = 4y + 6 equation 1

-2 ( x - 4y ) = -12

x - 4y = -12/ -2

x - 4y = 6

x = 4y + 6

so the ans is:

x = 4y +6

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15 and 29 or (15,29)

2 + 15 = 17

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Hope it Helped!


6 0
3 years ago
The sum of the reciprocals of 2 consecutive integers is 32/132
lisabon 2012 [21]
SOLUTION:

x + x + 1 = 132 / 32

2x + 1 = 33 / 8

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2x = 25 / 8

x = 25 / 8 / 2

x = 25 / 16

The first number is 25 / 16. Therefore, as the second number is consecutive we simply add 1 to the first number to achieve the second number as displayed below:

Second number:

= x + 1

= 25 / 16 + 1

= 36 / 16

= 9 / 4

ANSWER:

Therefore, the first number is 25 / 16 and the second number is 9 / 4.

Hope this helps! :)
4 0
3 years ago
What is the slope of the line shown below? (-2,-3) (-4,-9)
gogolik [260]

Answer:

Slope = 3

Step-by-step explanation:

Slope = (y2-y1)/(x2 - x1)

In this case,

Slope = (-9 + 3) / (-4 + 2)

= -6/-2

= 3

8 0
3 years ago
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12x=11x+6<br> How do I solve this, it’s proving lines parallel
Alex
It would be helpful to see a picture, but if you are just trying to solve for X. The answer would be 6.
4 0
3 years ago
Markus has a box containing 10 red cards, 10 yellow cards, 10 blue cards and 10 green cards. He randomly selects one card, recor
natka813 [3]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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