Question

Поезд должен проехать расстояние 400 км. часть пути он проехал за 3 часа, двигаясь со скоростью 70 км/ч. сколько км осталось проехать поезду?

Answer 1

Можно решить так:
400 - (70 х 3)= 400 - 210 = 190 (км) осталось проехать

можно так:
70 х 3 = 210 (км) поехал поезд
400 - 210 = 190 (км) пути осталось проехать
              Ответ: осталось 190 км.

Answer 2

1)70•3=210(км)- проехал 2)400-210=190(км)- осталось Ответ:190 км осталось проехать поезду

Answer 3

Calculation of Remaining Distance

To calculate the remaining distance the train needs to travel, we can subtract the distance already covered from the total distance.

Given: - Total distance: 400 km - Time taken to cover a part of the distance: 3 hours - Speed of the train: 70 km/h

To find the distance covered, we can use the formula:

Distance = Speed × Time

Using this formula, we can calculate the distance covered by the train:

Distance covered = Speed × Time = 70 km/h × 3 hours = 210 km.

To find the remaining distance, we subtract the distance covered from the total distance:

Remaining distance = Total distance - Distance covered = 400 km - 210 km = 190 km.

Therefore, the train has 190 km left to travel.

Please let me know if there's anything else I can help you with!