Предмет: Математика, автор: dn5002

Мост длиной 60 метров поезд проезжает за минуту, а мимо телеграфного столба (двигаясь с той же скоростью) проезжает за $40$ секунд. Какова длина поезда?

Ответы

Автор ответа: РязановаПоля
0
1) 60-40=20(сек.)-Разница во времени проезда по мосту и мимо телеграфного столба.
2) 60:20=3(м/с)-V поезда.
3) 3•40=120(м)-Длина поезда.
Ответ: 120 метров.

Надеюсь, что помогла.
Автор ответа: dn5002
0
спасибо
Автор ответа: РязановаПоля
0
Пожалуйста.
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Русский язык, автор: ailynmukhazhan

14. Укажите слово, образованное при помощи приставки:
A) читать
В) чтение
С) прочитать
Д) читатель​
5 лет назад
Предмет: Английский язык, автор: sitievvva
Task 2.
A) ASTANA
A vibrant city where you can find the traditional and the modern existing together. In the shopping centres you will find national souvenirs, handmade rugs, leather goods, and jewellery. The city has many futuristic buildings and skyscrapers: Bayterek monument, Khan Shatyr Entertainment Centre. It would be impossible to go to Astana and not visit the amazing Nur Alem. Perhaps you may like to take Ishim river boat tour! Numerous fountains on the Round Square, Nurzhol and Green Water boulevards create a truly unforgettable experience. You can also take a trip deep into the steppe. Just ask your holiday rep to organise it for you.
B) NEW YORK
In this city it is possible to eat whatever you want as it has more than 6,000 restaurants, from the most romantic to places where you can take the children. You can try food from all over the world in areas called 'Chinatown', 'Little India' and 'Little Italy'. Many say that it is the shopping capital of the world and with thousands of stores offering a choice from cheap second-hand clothes to the most expensive designer labels, there is something for everybody. The 'city that never sleeps' is also full of life at night with bars and clubs playing all kinds of music. Of course, no stay in the Big Apple would be complete without a visit to the Empire State Building and the Statue of Liberty.
C) LONDON
If you don't mind the fact that it might be raining while you are there, then this city has much to offer. With hundreds of museums and galleries, there is always something to do while sheltering from the rain. In the evenings you can see a show in London's theatre district in the centre of the city, where there are more theatres together in one area than anywhere else in the world. The hundreds of different cultures that live together in this city mean that you can eat food from anywhere in the world before going to one of the many nightclubs. Don't forget to try the London Eye, a big wheel that takes you high above London to enjoy the great views.
D) PARIS
It is known as the city of romance and is famous for its beautiful tree-lined streets. Of course, the French are famous for their cuisine, but be careful when you are going out to eat as restaurants can be very expensive. Always check the prices on the menu outside (if there isn't one then it won't be cheap!). You can take a walk along the River Seine and the view from the top of the Eiffel Tower is a must on any trip to Paris. You must also visit the enormous Louvre museum where you can see what is probably the most famous painting in the world, Leonardo da Vinci's 'La Gioconda'.

For questions 1-6, choose from the cities (A-D). Some of the cities may be chosen more than once
likes visiting museums? 1 __ 2 __
likes to try international cuisine? 3 __ 4 __
is interested in modern architecture? 5 __
Total [5]
Choose ONE of the topics and write an essay.
Topic 1. Travelling has become popular in recent years. What are the advantages and disadvantages of travelling?
Topic 2. Technologies are changing the way we live. What are the advantages and disadvantages of advanced technologies?
5 лет назад
Предмет: Физика, автор: vladsoloviev022006
Хлопчик рухається на велосипеді. За швидкості руху 4,5 м/с хлопчик,
переставши крутити педалі, нахилився та підхопив рюкзак, що лежав на
землі. Якою буде швидкість руху хлопчика в наступний момент часу? Маса
хлопчика разом із велосипедом дорівнює 80 кг, маса рюкзака – 10 кг.
5 лет назад
Предмет: Литература, автор: wwwnensi4009
Пожалоста помогите закончить пословицу два сопога
9 лет назад
Предмет: Литература, автор: nactya063
Кто спас Елену Дмитриевну в Князе серебряном??!
9 лет назад