Предмет: Математика, автор: bebratop2003

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tatsach: Сделайте фото задания

bebratop2003: Сделал

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Автор ответа: tatsach

Ответ:

Пошаговое объяснение:

хх возраст дуба
3/4х возраст лиственницы
3/4х*1/4 возраст тиса
Х+3/4х+3/16х=1550

Х+12/16х+3/16х=1550

1 15/16х=1550

Х=1550:1 15/16

Х=1550*16/31

Х=800 лет дубу
3/4*800*1/4=150 лет тису

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