Предмет: Алгебра, автор: anastasiadiomin

Саша решил две задачи на 35 мин. .Первую задачу он решил на 7 минут дольше ,чем вторую . Сколько минут решал вторую задачу?

Ответы

Автор ответа: nazarbilets

t²=35:2-7
t²=10,5
t² - время решения второй задачи

Автор ответа: Аноним

не правильно

Автор ответа: Аноним

х+(х+7)=35
2х+7=35
35-7=28
28:2=14
35-14=21
первый задача за 21 мин
второй задача за 14 мин

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