Question

Два поезда вышли одновременно на встречу друг другу из двух городов, рассотаяние между которыми 600 км. Скорость певого поезда 70км/ч, а скорость второго 80 км/ч. Какое расстояние было между поездами через 3 часа после выхода? Через сколько времени после выхода они встретились? ПОМОГИТЕ ПОЖАЛУЙСТА ДОБРЫЕ ЛЮДИ! :)))

Answer 1

70+80=150 км/час скорость сближения поездов                                                       600-(150*3)=600-450=150 км расстояния было между ними через 3 часа           600:150=4ч                                                                                                                 Ответ- Встретились через 4 часа

Answer 2

1) определяем скорость сближения
80+70=150 км/час
2.Расстояние  которое прошли за 3 часа
150*3=450 км
3 Расстояние между ними 
600-450=150 км
4. Через сколько встретились?
600:150=4 часа

Answer 3

Calculating the Distance and Time of Trains Meeting

To calculate the distance between the trains after 3 hours and the time it takes for them to meet, we can use the formula:

Distance = Speed × Time

Given: - Speed of the first train = 70 km/h - Speed of the second train = 80 km/h - Time = 3 hours

Distance Between Trains After 3 Hours

The distance traveled by the first train after 3 hours is: Distance of first train = 70 km/h × 3 h = 210 km

The distance traveled by the second train after 3 hours is: Distance of second train = 80 km/h × 3 h = 240 km

So, the distance between the trains after 3 hours is: Distance between trains = 210 km + 240 km = 450 km

Time Taken for Trains to Meet

To find the time it takes for the trains to meet, we can use the concept of relative speed. When two objects are moving towards each other, their relative speed is the sum of their individual speeds.

The relative speed of the two trains is: Relative speed = Speed of first train + Speed of second train = 70 km/h + 80 km/h = 150 km/h

The time taken for the trains to meet is: Time = Distance / Relative speed = 600 km / 150 km/h = 4 hours

Therefore, the trains will meet after 4 hours from the time they started.

So, after 3 hours, the distance between the trains is 450 km, and they will meet after 4 hours from the time they started.

I hope this helps! If you have any more questions, feel free to ask!