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футбольная команда состоит из 4 игроков которым по 19 лет, 3 игроков которым по 20 лет, и из 4 игроков которым 21 год. найдите средний возраст команды.
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Предмет:
Математика -
Автор:
boscocastillo - 5 лет назад
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Ответы 1
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4+3+4=11 игроков всего19*4+20*3+21*4=220 лет - суммарный возраст команды220:11=20 лет - средний возраст команды
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Автор:
scoutug9p - 5 лет назад
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