Answer:
130
Step-by-step explanation:
Angle B = 180 - Angle A
180 - 50 = 130
His answer is not reasonable because 5/8>4/3
Answer:

Step-by-step explanation:
Supplementary angles are angles equal to 180°.
Therefore:

Now that we have our equation, let's distribute the
and the
into the parentheses they are next to:

Combine like terms:

Subtract
from both sides of the equation:

Divide by the coefficient of
, which is
:

~
Check your work by substituting
into one of the equations above:



It's correct!
Answer:
✔︎
Step-by-step explanation:






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hope it helps...
have a great day!!