Предмет: Математика, автор: christinakrasyuk

В доме есть 16 трехкомнатных квартир, составляет 4/21 количества всех квартир в доме.Сколько в этом доме квартир?

jekadva: Ответ: 84 квартиры

christinakrasyuk: А можете розписать

christinakrasyuk: Пожалуйста

jekadva: 16 : 4/21 = 16 * 21/4 = 4 * 21 = 84 квартиры

christinakrasyuk: Спасибо

Ответы

Автор ответа: Аноним

16/x=4/21

4x=16*21

4x=336

x=84

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