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6. Цена книги в 8 раз больше цены тетради, а тетрадь стоитна 35 руб. дешевле книги. Найдите цену книги (в руб.).
Ответы 1
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Пусть цена тетради x рублей, тогда цена книги - 8x.1. Составим уравнение:8x-x=357x=35x=35:7x=52. Подставляем вместо х:8*5=40Ответ: 40 рублей
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Автор:
mochapqp0 - 6 лет назад
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