Предмет: Математика, автор: 354672

346.Найдите среднее арифметическое чисел: В)3/4,2/5,11/20

Ответы

Автор ответа: Alyssa08

Ответ:

17/30.

Пошаговое объяснение:

Среднее арифметическое чисел - это сумма этих чисел, делённая на их количество.

--------------------------------------

a = 3/4

b = 2/5

c = 11/20

m - ? (среднее арифметическое)

=======================

Заметим, что нам даны 3 числа.

Значит по определению, m = (a + b + c) : 3.

Из решения на картинке получаем, что m = 17/30.

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