Предмет: Математика, автор: Аноним

Автомат за 5 мин заворачивает 2200 конфет. Сколько конфет заворачивает этот автомат за смену, продолжительность которой 7 ч?

Реши задачу двумя способами.

Ответы

Автор ответа: prettypushkova

66

1 способ (по действиям). 1 час = 60 минут
1) 2 200 : 5 = 440 конфет - заворачивает автомат за 1 минуту;
2) 440 * 60 = 26 400 конфет - заворачивает автомат за 1 час;
3) 26 400 * 7 = 184 800 конфет - завернёт автомат за смену.
Выражение: 2 200 : 5 * 60 * 7 = 184 800

2 способ (пропорция). 7 часов = 7 * 60 = 420 минут
5 мин - 2 200 конфет
420 мин - ?
1) 420 : 5 = 84 (раз) - в 84 раза больше времени;
2) 2 200 * 84 = 184 800 - в 84 раза больше завернёт.
Выражение: 420 : 5 * 2 200 = 184 800
Ответ: 184 800 конфет за смену.

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