Предмет: Математика, автор: alexeeva16411

Сделайте пожалуйста три номера я знаю что очень мало баллов но у меня больше нету. номер 170 номер 166 а и б и номер 167 (б) и третье фото для номера 170

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Ответы

Автор ответа: ksen04

166.
а)В начале -16 523 км
Стало через 670 км - ? км
16523+670=17193 (км) станет показание спидометра
б) В начале -27836 км
В конце - 28184 км
Проделанный путь -? км
28184-27836=348 (км) проехал автомобиль.

167.
б) Прибывает- в 9 ч.15 мин.утра
В пути - 8 час.20 мин.
Отправление - ? час.
9 ч.15 м - 8 ч.20 м.=95 мин=1 час 35 минут(ночи)

170.
Из пункта А в пункт С,чтобы найти короткий маршрут,посчитаем расстояние до пунктов и выберем наименьшую сумму.Рассмотрим 2 варианта.
1 вариант : А+В+Р+М+С
37+22+26+17=102

2 вариант : А+D+P+N+C
42+19+25+21=107

102<107
Значит мы выбираем 1 вариант ,а именно маршрут А-В-Р-М-С

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