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Leonelle
Leonelle
25.04.2023 08:46 •  Математика

Ежедневно 9 поездов перевозили по 635 человек. сколько за неделю

👇
Ответ:
3lJouKpolJouk
3lJouKpolJouk
25.04.2023
Надо узнать сколко перевозили 9 поездов за день:
9*635=5715
И узнать сколько они перевезут за неделю:
5715*7=40005
ответ: за неделю поезда перевезут 40005 человек.
4,6(40 оценок)
Открыть все ответы
Ответ:
tseng7788
tseng7788
25.04.2023

Пошаговое объяснение:

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4,6(44 оценок)
Ответ:
Пусть первый мальчик передвигался а₁ км пешком, а 30-а₁ км на велосипедах, второй-а₂ км пешком, а 30-а₂ км на велосипедах, третий - а₃ км пешком, а 30-а₃ - велосипедах. Тогда по суммарно велосипед использовался на дистанции 30 км, т.е. 30-а₁+30-а₂+30-а₃=60 или а₁+а₂+а₃=30, т.е. одно из чисел а≥10. Допустим, что а₁≥20, тогда первый мальчик передвигался пешком по крайней мере 10км, а ещё не более 20кмна велосипеде, т.е. он потратил по крайней мере 105+2015=313часа, т.е. 200 минут.
ответ: 200 минут.
4,4(94 оценок)
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