Предмет: Математика, автор: irinaivchenko

У конкурсі читців віршів Тараса Шевченка взяло участь 8 хлопчиків і 7 дівчаток. Серед них 2/3 від усіх дітей третьокласники , а решта другокласники , скільки другокласників взяло участь у конкурсі

Ответы

Автор ответа: deminskiy09y

0

Ответ:

8+7=15 всього дітей

5•3=15

1/3=3

2/3=3+3=6

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