Question

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 :)

Answer 1

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:

$\implies 133 - 20 = \angle A$

$\implies 113\° = \angle A$

Answer 2

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

~lenvy~