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LAST ONE!!! PLZ HELP!!

LAST ONE PLZ HELP class=

Sagot :

Answer:

x = 10°

y = 25°

Step-by-step explanation:

3x = 5x - 20  because they are alternate interior angles

subtract 5x from each side of the equation:

-2x = -20

Divide both sides by -2:

x = 10°

The sum of the interior angles of any triangle = 180°

2y + 4Y + (5x - 20) = 180°

combine like terms:

6y + 5x - 20 = 180°

add 20 to each side:

6y + 5x = 200°

substitute for x:

6y + 5(10) = 200°

subtract 50 from each side:

6y = 150°

divide both sides by 6:

y = 25°