Предмет: Алгебра, автор: zulfura

Помогите пожалуйста по алгебре 7 класс номера 25, 26, 27.

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Ответы

Автор ответа: smailik12345

номер 26

пусть x га - первый фермер тогда x+2.5 га - второй фермер по условию задачи за 8 дней второй фермер выполнил работу на 2 га больше чем первый за 10 дней. состав уравн :

8x + 20-2=10x

x=9

ответ 9га и 11,5 га

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