Matematika

Pertanyaan

tolong dijawab pakai cara (5y + 10°) + (2y + 6°) + (11y - 2°) = 180°

2 Jawaban

  • (5y + 10°) + (2y + 6°) + (11y - 2°) = 180°
    = (5y+2y+11y)°+(10+6-2)° =180°
    = 18y°+14° = 180°
    = 18y° = 180° - 14°
    = 18y° = 166°
    = y = 166/18
    = y = 9,2°
  • 5y + 10 +2y + 6 + 11y - 2 = 180°
    18y + 14 = 180
    18y = 180 - 14
    18y = 166
    y = 166/18= 9,666

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