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mina [271]
2 years ago
12

Find the value of x in the picture

Mathematics
2 answers:
muminat2 years ago
8 0

Answer:

x = 9

Step-by-step explanation:

49 degrees and (5x + 4) are vertical lines, meaning they are congruent.

We can make an equation with this information:

(5x + 4) = 49

      -4      -4

5x = 45

/5     /5

x = 9

BabaBlast [244]2 years ago
3 0

Answer:

x = 9

Step-by-step explanation:

5x+4 = 49

subtract 4 from both sides

5x = 45

divide both sides by 5

x = 9

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Can you help me solve systems of equations by elimination step by step<br> 6x+y=15<br> -7x-2y=-10
Anna71 [15]

Answer:   (4, -9)

<u>Step-by-step explanation:</u>

Use elimination method.  Manipulate one (or both) equations to eliminate one of the variables and solve for the remaining variable.  <em>I will be eliminating y</em>

6x +  y =  15    → 2(6x +  y =  15)   →   12x + 2y = 30

-7x - 2y = -10   → 1(-7x + 2y = -10)   →  <u> -7x - 2y = -10</u>

                                                             5x        = 20

                                                               x         =  4

Next, replace "x" with "4" into either equation and solve for y.

6(4) + y = 15

24  + y = 15

         y  = -9


<u>Check:</u>

Plug in x = 4 and y = -9 into the other equation to verify it makes a true statement.

-7x - 2y = -10

-7(4) - 2(-9) = -10

-28  -   -18  = -10

-28  +  18 = -10

       -10    =  -10  \checkmark

6 0
3 years ago
PLEASE HELP, GIVING 55 POINTS IF YOU ANSWER (08.03/08.05 MC) A pair of equations is shown below: y = 3x − 5 y = 6x − 8 Part A: E
Andrew [12]

Answer:

  A. (1, -2)

  B. the lines intersect at the solution point: (1, -2).

Step-by-step explanation:

A. The equations can be solve by substitution by using the y-expression provided by one of them to substitute for y in the other.

This gives ...

  3x -5 = 6x -8

Adding 8-3x to both sides, we get ...

  3 = 3x

Dividing both sides by 3 gives ...

  1 = x

Substituting this value into the first equation, we can find y:

  y = 3(1) -5 = -2

The solution is (x, y) = (1, -2).

__

B. The lines intersect at the solution point, the point that satisfies both equations simultaneously. That point is (1, -2).

8 0
3 years ago
The green line below
trasher [3.6K]
A,d I'm pretty sure because of the cy axis
7 0
3 years ago
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Which of the following describes the number 0.5? A. irrational, terminating decimal
Oksanka [162]

Answer:

D

Step-by-step explanation:

0.5 can be written as a fraction and 0.5 doesn't repeat

6 0
3 years ago
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I just need a little help ​
Anvisha [2.4K]

Answer:

its the second answer!

Step-by-step explanation:

6 0
3 years ago
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