Предмет: Математика, автор: sestakovasvetlana001

среднее арифметическое равно 14.Одно из этих чисел равно 9.Чему равно второе число?

Ответы

Автор ответа: Адиль15123

Ответ:

Пошаговое объяснение:

x - второе число

(9 + x) / 2 = 14

9 + x = 14 * 2

9 + x = 28

x = 28 - 9

x = 19

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