Оля за годину друкує 5 сторінок, а Яна -7. Скільки сторінок вони надрукують разом за 3 години? - №22117060

Оля за годину друкує 5 сторінок, а Яна -7. Скільки сторінок вони надрукують разом за 3 години?
- Предмет:
  Математика
- Автор:
  twiggy64
- 5 лет назад

Ответы 1

5+7=12(ст) за один год12*3=36(ст) за 3 год
- Автор:
  kikiwhitaker
- 5 лет назад
- 0
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