Предмет: Математика, автор: zannatv33

Друкар першого дня передрукував 48 сторінок рукопису, а другого дня - на 12 сторінок більше ніж першого. На всю роботу за ці дні вона витратила 9 годин. Скільки часу працювала вона 1 дня і скільки 2 дня, якщо продуктивність праці була однакова

Ответы

Автор ответа: dima993

Пошаговое объяснение:

В перший день працювала 4 години .

В другий день працювала 5 годин

Берем 9 годин ділимо на 2 дня буде по 4,5 години.

В умові сказано що в другий день вона зробила на 12 сторінок більше при тому що праця була одинакова, тому переставляем 30мин від першого дня до другого і получаем.

4×12=48

5×12 = 60

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