Предмет: Математика, автор: polinademina2006

Две группы туристов отправились из села Грибное в Ягодное в 10ч утра. Первая группа двигулась пешком по берегуреки со скоростью 4км/ч ,а вторая - вдоль берега на лодках со скоростю 14км/ч. Первая группадобралась до места к 5 ч вечера .Вкакое времяприбыла в село Ягодное вторая группа туристов. Можно по быстрей пожалуйста и там 4 действия.

Ответы

Автор ответа: maryanis
0
5ч вечера=17ч
17-10=7(ч) время в пути первой
4*7=28(км) до места
28:14=2(ч) в пути вторая
10+2=12(часов)
Автор ответа: polinademina2006
0
спасибо
Автор ответа: polinademina2006
0
можно к этой задаче ещё составить одну обратную задачу
Автор ответа: maryanis
0
можно
Автор ответа: polinademina2006
0
что можно
Автор ответа: polinademina2006
0
напиши обратную задачу пожалуйста
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4. I (to see) my friend in the street yesterday, but he (to run) for a bus and he (not to have) time to speak to me.
5. We (to have) a postcard from them two days ago. They (to say) they (to have) a marvellous time.
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9. It (to rain) the whole day yesterday.
10. He (to fall) down and (to break) his leg while he (to play) football.
11. The boy (to work) at his father's factory, (to go) to the Art Institute in Kansas City and many years later he (to found) his own cartoon company. The boy (to be) Walt Disney. 12. At this time yesterday I (to lie) on the soft and (to read) a novel.
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