Предмет: Математика, автор: Аноним

крылья ветреной мельницы делают 270 оборотов за 6 мин .сколько оборотов они сделают за 15 мин ?за 18 мин?

Ответы

Автор ответа: electronic288

1).270:6=45(об.)- за одну минуту;
2).45×15=675(об.)- за 15 минут.
Ответ: 675 оборотов.

1).270:6=45(об.)- за одну минуту;
2).45×18=810(об.)- за 18 минут.
Ответ:810 оборотов.

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Great Britain

The history of Great Britain

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