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

∠ A = 133

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~

Answer 2

`113\° = \angle A`

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 (-19)/(-1) = (-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`