Предмет: Математика, автор: lizasafronova1

Один поезд проходит расстояние между станциями за 26 минут, а другой за 39 минут. Через какое время они встретятся, если выйдут одновременно навстречу друг другу? НАПИСАТЬ УСЛОВИЕ И РЕШЕНИЕ!

Ответы

Автор ответа: Аноним

1

1/26-скорость первого.
1/39-скорость второго
.1)1/26+1/39=5/78-скорость сближения.
2)1:5/78=78:5=через 153/5мин-они встретятся.

lizasafronova1: А что черта значит?

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Vinci was the name of an Italian town.
1)
True
2)
False
3)
Not stated

Leonardo’s father had a great art collection.
1)
True
2)
False
3)
Not stated

One day, Leonardo da Vinci became a more brilliant artist than his teacher.
1)
True
2)
False
3)
Not stated

Nowadays there are several versions about who Mona Lisa was.

1)
True
2)
False
3)
Not stated

Leonardo da Vinci saw most of his inventions in practical use.
1)
True
2)
False
3)
Not stated

Leonardo da Vinci invented a special ink to write his notes.
1)
True
2)
False
3)
Not stated

Leonardo da Vinci became a vegetarian because of an illness.
1)
True
2)
False
3)
Not stated

After Leonardo’s death, his diaries were found in his Italian workshop.
1)
True
2)
False
3)
Not stated

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