Найдите число х, если 4/7 от х равны 40% от числа 80
madike
1
06.06.2019 13:40
0
Ответы
алла7781
01.10.2020 20:39
4а/7=0,4*804а/7=324а=32*7а=32*7/4а=56………………………………..40%=0,41)0,4 х 80=322)32 :4 х 7=56ответ: а=56
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