Question

Angle A and B are supplementary. If m (is less than sign) A = 3y + 12 and m (is less than sign) B = 2y +48, find the value of y.

Answer 1

Answer: y=24

Explanation:

Supplementary angles add up to 180 degrees.

A+B=180

3y + 12 + 2y +48=180

3y+2y+12+48=180

5y+60=180

5y=120

y=24