SOLUTION: Angle A and angle B are supplementary. The measure of angle B is equal to four times the complement of angle A. What is the measure of angle A?

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Question 862651: Angle A and angle B are supplementary. The measure of angle B is equal to four times the complement of angle A. What is the measure of angle A?
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi

 A + B = 180

 A + 4(90°-A) = 180°    |B = four times the complement of angle A

 - 3A = -180°

    A = 60°  AND B = 120°

CHECKING our answer***

 60° + 4•30° = 180

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