Answer:
the supplementary angles are 41° and 139°
Step-by-step explanation:
let one of the the supplymentary angle be x
the other angle = 3x + 16
now, since we know they are supplementary, their sum = 180°
=》x + 3x + 16° = 180°
=》4x = 180° - 16°
=》x = 164° ÷ 4
=》x = 41 °
so, one of the angles is x = 41°
the other one is : 3x + 16
=》(3 × 41°) + 16°
=》123° + 16°
=》139°