Question

Два автомобиля выехали одновременно навстречу друг другу из двух городов , расстояние между которыми 640 км и встретились через 4 часа. С какой скоростью ехал 2 автомобиль, если скорость 1 автомобиля равна 83 км/что?

Answer 1

1. 83*4=332 - проехал 1-й автомобиль
2. 640-332=308 - проехал 2-й автомобиль
3. 308/4=77 - скорость 2-го автомобиля

Answer 2

Calculating the Speed of the Second Car

Two cars traveled towards each other from two cities, which are 640 km apart, and met after 4 hours. We need to calculate the speed of the second car, given that the speed of the first car is 83 km/h.

To calculate the speed of the second car, we can use the formula:

Total distance = (Speed of first car + Speed of second car) * Time

Given: - Distance = 640 km - Time = 4 hours - Speed of first car = 83 km/h

Using the formula, we can calculate the speed of the second car:

640 = (83 + Speed of second car) * 4

Now, let's solve for the speed of the second car.

Calculation

Using the given information and the formula, we can solve for the speed of the second car:

640 = (83 + Speed of second car) * 4 640 = 332 + 4 * Speed of second car 4 * Speed of second car = 640 - 332 4 * Speed of second car = 308 Speed of second car = 308 / 4 Speed of second car = 77 km/h

Conclusion

The speed of the second car was 77 km/h.