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15-02-2021
Mathematics

contestada

The difference of two supplementary angles is 74. Find the measures of the two angles.

Respuesta :

17-02-2021

Answer:

Step-by-step explanation:

Sum of supplemental angles is 180°

x+y = 180

x-y = 74

Add the equations together to eliminate the y terms, then solve for x.

x+y = 180

x-y = 74

————-

2x = 154

x = 77°

y = 180-x = 103°

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