SOLUTION: Two angles are supplementary.The first angle measures 40 degrees.What is the measurement of the second angle? can you please help me figure this question out

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Question 637337: Two angles are supplementary.The first angle measures 40 degrees.What is the measurement of the second angle? can you please help me figure this question out
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Two angles are supplementary.The first angle measures 40 degrees.What is the measurement of the second angle?
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Let the unknown angle be "x":
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Fact: Angles are supplementary if their sum is 180 degrees.
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Equation:
x + 40 = 180 degrees
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x = 180-40
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x = 140 degrees
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Cheers,
Stan H.