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Решите задачу пропорцией после того как цену товара снизили на 20% затем еще на 10% она стала ровна 540 тг какова первоначальная цена?
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Предмет:
Математика -
Автор:
mustacheswcq - 5 лет назад
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Ответы 1
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1) 540 ÷ 10 =54=10%2) 540%20=108=20%3)540+108+54=702кг - первоначальная ценна
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Автор:
lillys64m - 5 лет назад
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