Ответ:
7
Пошаговое объяснение:
са₁(9ч) = 7
са₂(7ч) = 9
сумма₁ = 7*9 = 63
сумма₂ = 9*7 = 63
са₃ = (63 + 63)/16 = 7,875 = 7
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Ответ:
7
Пошаговое объяснение:
са₁(9ч) = 7
са₂(7ч) = 9
сумма₁ = 7*9 = 63
сумма₂ = 9*7 = 63
са₃ = (63 + 63)/16 = 7,875 = 7