Предмет: Математика, автор: olenaslipec7

Знайти середнє арифметичне чисел 21,7 і 36,5

Ответы

Автор ответа: MatemaT123

1

Ответ:

$29,1$

Пошаговое объяснение:

$\dfrac{21,7+36,5}{2}=\dfrac{21+36+0,7+0,5}{2}=\dfrac{57+1,2}{2}=28,5+0,6=29,1;$

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