elianatowers elianatowers

14-03-2022
Mathematics

contestada

if two angles 2x+10°and 3x+20°are supplementary find x

Respuesta :

jimrgrant1 jimrgrant1

14-03-2022

Answer:

x = 30

Step-by-step explanation:

Supplementary angles sum to 180° , then

2x + 10 + 3x + 20 = 180 , that is

5x + 30 = 180 ( subtract 30 from both sides )

5x = 150 ( divide both sides by 5 )

x = 30

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