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Одно из самых старых деревьев на свете -- североамериканская сосна. Её возраст на 400 лет больше возраста дерева,которое дожило до 4700 лет, и на 1200 лет больше возраста одной из гигантских секвой. Каков возраст североамериканской сосны и гигантской секвойи?
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Предмет:
Математика -
Автор:
tinybulo - 6 лет назад
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Ответы 2
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Спасибо огромное!!!
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Автор:
veronicaschultz - 6 лет назад
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Дано:x+400 - Североамериканская сосна.x+400-1200 - Гигантская секвойя.x= 4700 - по задаче.Решение:Подставляем х=4700:1) 4700+400= 5100 (лет североамериканской сосне).2) (4700+400)-1200= 5100-1200= 4900 (лет гигантской секвойи)Ответ: 5100 лет североамериканской сосне, 4900 лет гигантской секвойе.
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Автор:
supermanl6ca - 6 лет назад
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THE TRADE OF GREAT BRITAIN
International trade has always been important to Britain but its importance has increased markedly in recent years. Exports of goods and services now account for nearly a third of gross domestic product, compared with almost a fifth some 30 years ago; imports have shown a broadly similar trend as proportions of home demand.
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