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dasha18s10
dasha18s10
29.05.2022 08:18 •  Математика

Выполните умножение: а) 250×9×4 б) 2×763×125×4

👇
Ответ:
dashsharapova2
dashsharapova2
29.05.2022
250 ×9×4=9000 2×763×125×4=763000
4,4(66 оценок)
Ответ:
taniash052005
taniash052005
29.05.2022
А)  9000
b)763000

 просто текста мало вот я и  пишу 
мдааа
4,6(24 оценок)
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Ответ:
astasevbogdanp08dn2
astasevbogdanp08dn2
29.05.2022

Пошаговое объяснение:

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4,7(20 оценок)
Ответ:
hedgehogGreen
hedgehogGreen
29.05.2022
Итак, ни одна коробка не должна быть пустой, тогда в каждой коробке будет хотя бы один карандаш — это минимум. У нас 5 коробок, тогда уже 5 карандашей будут разложены по коробкам. На руках осталось всего 4 карандаша. По условию, как я понимаю, не должно быть коробок с одинаковым количеством карандашей. То есть, если в первой коробке у нас 1 карандаш, то ни в одной другой не должно быть одного. Положим во вторую коробку ещё один карандаш. В третью положим 2 карандаша, так как во второй их уже 2. На руках остался один карандаш. Куда бы мы его теперь ни положили, решить поставленную задачу мы не сможем: в первой коробке 1 к., во второй — 2 к., в третьей — 3 к., в четвёртой 1 к., в пятой 1 к. и на руках ещё 1 к. Получается, чтобы решить задачу, нужно 1+2+3+4+5 карандашей, то есть 15 штук для 5 коробок. В задаче по олимпиаде к 6 классу в условии 13 карандашей и 6 коробок — суть та же, карандашей не хватает, то есть ответ — невозможно (такой ответ есть в скобочках).
4,6(94 оценок)
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