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maria [59]
3 years ago
7

HELP PLEASE

Mathematics
1 answer:
iragen [17]3 years ago
4 0

Answer:

third number = 4,

equation of y, y = 5x - 11

equation of n, n = 4x

equation of x, n + x + y =19

Step-by-step explanation:

so lets write evertything as a n equation. n + x + y =19. N is the first number, x is the second number, and y is the third number. We will write the equation for y as follows 5x - 11. N will be four times the second number, so 4x. If substitute the values for out equation for x we will find what x equals to. So (4x) + x + (5x - 11) = 19

10x = 30

x = 3.

Then you substiute the answer for x in the equation for y. This will get you 5(3) - 11

15 - 11

4 = third number

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9 + |-78| - (-22)<br><br> Answer truthfully please.
GuDViN [60]

Answer:

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Step-by-step explanation:

9 + |-78| - (-22)

Apply the absolute value which states |-x| = x.

9 + 78 - (-22)

Apply the rule that states x - (-y) = x + y.

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4 0
2 years ago
In the figure, . Find x and y.
zloy xaker [14]

Answer:

The answer to your question is x = 52° and y = 137°

Step-by-step explanation:

Process

1.- Find the value of x using the large right triangle, remember that the sum of the internal angles in a triangle equals 180°.

   x  + 38 + 90 = 180

  x = 180 - 90 - 38

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2.- To find y, we notice that x and y -9 are supplementary angles so their sum gives 180°.

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Substitution

          52 + y - 9 = 180

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          y = 137°

   

6 0
3 years ago
Two questions in one.
s2008m [1.1K]
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2 years ago
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