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laila [671]
2 years ago
10

Please I really need help, and please don't try and play me becasue someone just put the wrong answer and juked 70 of my points

:)

Mathematics
2 answers:
STALIN [3.7K]2 years ago
6 0

Answer:

113\° = \angle A

Step-by-step explanation:

Given:

  • ∠A = ∠B (Vertically opposite angles)
  • ∠A = 7x - 20
  • ∠B = 6x - 1

If ∠A is equivalent to ∠B, then...

\implies 7x - 20 = 6x - 1

Add 1 both sides:

\implies 7x - 20 + 1= 6x - 1 + 1

Simplify both sides:

\implies 7x - 19= 6x

Subtract 7x both sides:

\implies 7x- 7x  - 19= 6x - 7x

Simplify both sides:

\implies -19= -x

Divide both sides by -1:

\implies \dfrac{-19}{-1} = \dfrac{-x}{-1}

Simplify both sides:

\implies 19= x

Substitute the value of x into "7x - 20" to determine ∠A:

\implies 7x - 20 = \angle A

\implies 7(19) - 20 = \angle A

Simplify the expression:

\implies 133 - 20 = \angle A

\implies 113\° = \angle A

spayn [35]2 years ago
6 0

Answer:

∠ A = 133

Step-by-step explanation:

Putting both angels together

Since,

m ∠ A = (7x-20)

m ∠ B = (6x-1)

Thus,

(7x-20) = (6x-1)

Solving for x:

7x  - 20 = 6x -1

  +20           +20

-------------------------

7x =  6x + 19

-6x    -6x  

-----------------------

1x = 19  

x = 19

7(19) -20 =  113

6(19) - 1 = 113  

Hence measure of m ∠ A = 113

<u><em>~lenvy~</em></u>

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