Question

Из города в противоположных направлениях выехали 2 машины . Скорость первой -80км/ч , скорость 2 - 60км/ч. Через сколько часов расстояние между машинами будет 280 км?

Answer 1

1)60+80=140км-скорости и 1 и 2 машины вместе.
2)280:140=2 часа-будет расстояние между машинами будет 280 км
Ответ:Через 2 часа

Answer 2

1) 80 + 60 = 140 (км/ч) проедут за час вместе
2) 280 : 140 = 2 (часа) будит расстояние  между двумя машинами 280 км

Answer 3

Calculating the Time for the Cars to Reach 280 km Apart

To calculate the time it takes for the two cars to be 280 km apart, we can use the formula:

Time = Distance / Relative Speed

Where: - Distance is the initial distance between the cars (which is 0 km in this case). - Relative Speed is the difference between the speeds of the two cars.

Calculation Steps

1. Calculate the Relative Speed - The relative speed of the two cars is the sum of their individual speeds. - For the first car with a speed of 80 km/h and the second car with a speed of 60 km/h, the relative speed is 80 km/h + 60 km/h = 140 km/h.

2. Calculate the Time - Using the formula, Time = Distance / Relative Speed, we can calculate the time it takes for the cars to be 280 km apart. - Time = 280 km / 140 km/h = 2 hours.

Therefore, it will take the two cars 2 hours to be 280 km apart.