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igorkurkin02
igorkurkin02
31.08.2022 14:57 •  Математика

Имеется банка 2 литра и кастрюля на 4 литра, для приготовления супа надо налить в кастрюлю 3 литра воды из под крана, как это сделать?

👇
Ответ:
milota5
milota5
31.08.2022
Банка - 2 литра.
Кастрюля - 4 литра
Надо налить из банки один раз,а потом долить половину.
1) 3-2=1(л) нам не хватает одного литра
2) 2-1=1(л) то,что нам не хватало,то есть половина. 
4,4(22 оценок)
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Ответ:
ROMMIT2
ROMMIT2
31.08.2022

Пошаговое объяснение:

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4,4(68 оценок)
Ответ:
анна2255
анна2255
31.08.2022

Смотрите.

1) Обозначаем t — сколько времени они шли в первый день, тогда (t-1) — сколько во второй.

2) Теперь следующее соотношение — про 6 километров. Пускай в первый день они км, а во второй день — s2, тогда нам дано:

s1-s2=6.

3) Вспоминая, что расстояние=время*скорость (s=v*t), подставляем в эту формулу вместо s1 и s2:

(3,5*t)-(3*(t-1))=6.

Упрощаем:

3,5t-3t+3=6;

0,5t=3;

t=6.

ответ: Таким образом, в первый день они шли 6 часов. Во второй день — 6-1=5 (часов во второй день — 3*5 = 15 (км)

Пошаговое объяснение:

4,7(15 оценок)
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