Предмет: Математика, автор: veronkov233

із молока одержують 21 проц. сметани,а зі сметани 23 проц. масла.Скільки кілограмів молока треба взяти ,щоб одержати 966кг масла?​

Ответы

Автор ответа: iramazurk
2

Ответ:

20 000 кг

Пошаговое объяснение:

21% = 21 : 100 = 0,21

23% = 23 : 100 = 0,23

Нужное количество молока = х кг

х * 0,21 * 0,23 = 966

х * 0,0483 = 966

х = 966 : 0,0483

х = 20 000

Нужное количество молока = (х) = 20 000 кг

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A) any B) some C)a few
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A) many B) few C) a lot of

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2) I often ….. (buy) food on Fridays.
3) Nick …. (not/go) to the Caucasus last year.
4) Look out! Who….. (watch) you?
5) My grandfather usually ….. (work) in the garden in the morning.
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8) Sorry! I … (be late).
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