Предмет: Математика, автор: afilipcenko358

Знайдіть значення х, якщо середнє арифметичне чисел 2,6; 8,5 і х дорівнює 5,9. Дайте відповідь срочно

Ответы

Автор ответа: maxgribkov6

.........................................

Пошаговое объяснение:

............................

Приложения:

maxgribkov6: пасіб за 5 зірок

Автор ответа: Аноним

(2,6 + 8,5 + х) : 3 = 5,9 /*3

2,6 + 8,5 + х = 17,7

11,1 + х = 17,7

х = 17,7 - 11,1

х = 6,6

afilipcenko358: Дякую

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