Предмет: Математика, автор: Аноним

в поселке запланировано строительство новых коттеджей. при этом 3/4 коттеджей будут строить из кирпича, 1/12 - из деревянного бруса, а остольные 4 дома из бетонных панелей. сколько всего домов запланировано построить в поселке

Ответы

Автор ответа: kes0978

Всего запланированно построить 12 котеджей.

Автор ответа: цой484

возьмем за х общее количество домов
составим уравнение
х=3/4х+1/12х+4
х-3/4х-1/12х=4
(1-3/4-1/12)х=4
приводим к общему знаменателю и получим
1/6х=4
х=24
ответ всего 24 дома

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