twhiteside762 twhiteside762

19-01-2022
Mathematics

contestada

ZA and ZB are supplementary angles. If mZA = (3x + 9)° and m
ZB = (6x + 27)°, then find the measure of ZA.
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Respuesta :

melissazuna melissazuna

19-01-2022

Answer:

MZA= 57

Step-by-step explanation:

(3x +9) +(6x +27) =180

3x + 9 6x+27=180

9x + 36= 180

9x-180-36

9x= 144

Divide both sides by 9

X=16

MZA= (3x+9)

MZA= (3 x 16) +9)

MZA- (48+9)

MZA= 57

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