Предмет: Математика, автор: vikastarostina1

В какое количество воды нужно добавить 190 г сахара,чтобы получить 15%-ный раствор?

Ответы

Автор ответа: kolesnik80

190г - 15%
хг - 85%
Отсюда х=190*85:15=1076целых 2/3грамма≈1077граммов=1кг77г.
Ответ: В 1кг 77г воды.

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