Question

1* Halla e + 60° 20 + 10% 0 - 300 A) 30 B) 50° C) 40° E) 36 D) 35°​

Answer 1

2θ + 10 + θ - 30 = θ + 60

3θ - 20 = θ + 60

3θ - θ = 60 + 20

2θ = 80

θ = 40

Respuesta:

40