Предмет: Математика, автор: agundakh

первый рыбак отправился на моторной лодке по реке от пристани А к пристани В. А второй рыбак в тот же момент отправился на моторной лодке от пристани В к
пристани А.Они встретились через 23 мин. В обратный путь рыбаки отправились из тех же пунктов одновременно .через сколько минут после начала движения они встретятся на обратном пути.
с пояснениями очень прошу

Ответы

Автор ответа: lkehhill
0
Через 69 мин. Так как они встретились через 23 минуты, то до конца пути им оставалось по 23 мин. Потом они снова начали ехать и так же встретились. Просто скорость не меняется.
Автор ответа: lkehhill
0
Я сейчас рассчитала, не учитывая скорости реки, получается правильно!! Сейчас проверю с течением)
Автор ответа: lkehhill
0
Все правильно :D
Автор ответа: pavlikleon
0
проверьте еше, что скорости лодок разные.. и тогда поймете о чём я Вам пытаюсь сказать.. а течение действительно при общем расчете сокращается - то есть не имеет значения.. - согласен
Автор ответа: pavlikleon
0
внимательно перечитал условие задачи.. если в вопросе "начало движения" - это начало движения назад, то ответ, 23 минуты.. как и рассуждает отвечающий.., а его ответ, что 69 не верен.. так как они после встречи по разному прибудут в пункты назначения..
Автор ответа: pavlikleon
0
ой, извините.. Вы и ответивший, и комментатор.. извините, пожалуйста.. но, надеюсь мысль свою до Вас донес..
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Предмет: Английский язык, автор: awsrust17
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choosing the right variant.
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1) Irene is
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b. a student
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b. one son
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a. 30 years old
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c. 26 years old
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b.five aunts
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c. are now with her parents
d. were sick
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b. sick
c. white
d. dead
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a. typical
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a. a businessman
b. retired
c. a ski instructor
d. a programmer
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a. is a student and she is often at
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b. has very close contacts with her
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c. is not away from home
d. doesn’t have close contacts with
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10) Irene
a. has good relations with her
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d. doesn’t have any contacts with
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