DANA3072005
04.07.2020 18:39

3. 7 х 13 - Смоделируй умножение с умножения. 3.28 = 84 3.35 = 4.23 Дес Йод Дес йод Дес Йод Дес Йод 6 124 8 4.


3. 7 х 13 - Смоделируй умножение с умножения. 3.28 = 84 3.35 = 4.23 Дес Йод Дес йод Дес Йод Дес Йод

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Ответ:
dived
09.07.2020 21:55

Пошаговое объяснение:

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Ответ:
ask52
19.05.2021 07:08
У мамы могут быть
16, 17, 18, 19, 20, 21, 22, 23, 24 или 25 апельсинов.

16,18,20,22,24 - четные числа и на 2 делятся без остатка.
Значит остаются варианты
17, 19, 21, 23,25
21 кратно 3 и  раскладывается  на 3 тарелки без остатка.
Остались варианты
17, 19, 23,25

17:2=8 (ост1)
17:3=5(ост2) -не удовлетворяет условию в остатке должен остаться 1 апельсин

19:2=  9 (ост1)
19:3= 6 ( ост.1)
19:4 = 4 ( ост 3) - не удовлетворяет условию ( ост 1 должен быть)

23:2=11(ост1)
23:3=7(ост2) -не удовлетворяет условию ( ост 1 должен быть)

25:2=12 (ост1)
25:3=8(ост1)
25:4=6(ост1)
ответ 25 апельсинов
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