If 150° and 3a are supplementary angles, find the value of a.

asked Mar 8, 2022 181k views

3 votes

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2 votes

Answer:

a = 10

Explanation:

Supplementary angles sum to 180° , so

150 + 3a = 180 ( subtract 150 from both sides )

3a = 30 ( divide both sides by 3 )

a = 10

Komarkovich answered Mar 15, 2022

3.5k points

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