Question

Расстояние между двумя поездами,идущими навстречу друг другу,равно 8500км.Через сколько часов поезда встретятся,если они будут идти без остановок:один со скоростью 80км/ч,другой-90км/ч? РЕШИТЕ ЧЕРЕЗ ПУСТЬ!

Answer 1

Пусть поезда будут ижти до места встречи х часов. Тогда первый пройдёт 80х километров, а второй 90х километров.

80х + 90х = 8500
170х = 8500
х = 50

Ответ: поезда встретятся через 50 часов. 

Answer 2

Calculation of the Time for the Trains to Meet

To calculate the time it takes for the two trains to meet, we can use the formula:

Time = Distance / Relative Speed

Given that the distance between the two trains is 8500 km, and one train is traveling at a speed of 80 km/h while the other is traveling at a speed of 90 km/h, we can calculate the time it takes for them to meet.

Let's calculate the time using the formula:

For the train traveling at 80 km/h: Time1 = 8500 km / 80 km/h

For the train traveling at 90 km/h: Time2 = 8500 km / 90 km/h

Now, let's calculate the values:

Time1 = 8500 km / 80 km/h = 106.25 hours Time2 = 8500 km / 90 km/h = 94.44 hours

Therefore, the two trains will meet after approximately 106.25 hours if they continue to travel without any stops.

Please note that the above calculations assume that the trains start at the same time and continue to travel towards each other until they meet.