Предмет: Алгебра, автор: BoI7poC

14 человек приветствовали друг друга рукопожатиями. Семь человек сделали по три рукопожатия, двое – по пять и пятеро – по девять. Сколько всего было сделано рукопожатий?

Ответы

Автор ответа: lisenka222

Ответ:76

Объяснение:

7*3+2*5+5*9=76

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