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02-10-2020
Mathematics

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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

Respuesta :

Hannahlee2005 Hannahlee2005

02-10-2020

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

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