Предмет: Математика, автор: tanacetverikova35

Первое число равно 60 второе число составляет 75% от первого а третье число на 15 меньше первого найдите среднее арифметическое этих чисел
Срочно и по действиям!!! Даю 20 баллов

Ответы

Автор ответа: abdulhamidatabekov87

1

Ответ:

(60+60:4•3+60-15):3=50

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