Предмет: Математика, автор: ylehka29

28 дітей брали участь у змаганнях з бігу.
Кількість дітей, які прибігли пізніше від Степана, двічі більша за кількість дітей, які прибігли раніше, ніж Степан.
Якщо уважно поміркувати, то Степан пробіг

Ответы

Автор ответа: ffghhj75

Десятим

28-1=27 учасників без Степана
2x+x=27
3x=27
X=9
9 учасників пробігли перед Степаном

levcikarseny: Дай группу (я из оптимы)

ffghhj75: Какой класс?

levcikarseny: 8-В3

ffghhj75: Пиши ник из телеги

levcikarseny: @XELIZAR

levcikarseny: ты написал?

ffghhj75: Секунду добавлю

ffghhj75: Ответь я тебе написала

kanaknjjh: Можно в группу я из оптимы ? ник тг: Raze2512

ffghhj75: Добавила

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