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3 years ago

9

Angles A and B are supplementary. The measure of angle A is 60° and the measure of angle B is represented by 3x. Which equation

can be used to determine the value of x?
The equations are
A. 60+3x=90
B. 3x+60=180
C. 60-3x=180
D. 3x=60

1 answer:

boyakko [2]3 years ago

5 0

B
because the angles are supplementary meaning they add up to 180

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