Предмет: Математика, автор: ulianavelihurska

Середнє арифметичне трьох 56,7.Перше число 21,3,друге 19,8.Знайди третє число.

Ответы

Автор ответа: ncibin428

Відповідь:

21,3+19,8=41,1

56,7-41,1=14,6 (третє число число)числочисло)числочислочислочисло)

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