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Eirene
@Eirene
October 2020
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A metade de um ângulo menos a quinta parte do seu complemento mede 38°. Qual é esse ângulo?
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sayonara12santos
Verified answer
X/2 - (90 - x) / 5 = 38
5x - 2(90 - x) = 380 [multiplicando tudo por 10]
5x - 180 + 2x = 380
7x = 560
x=80°
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Verified answer
X/2 - (90 - x) / 5 = 385x - 2(90 - x) = 380 [multiplicando tudo por 10]
5x - 180 + 2x = 380
7x = 560
x=80°