Question

Из двух городов навстречу друг другу выехали одновременно грузовая машина со скоростью 43 км/ч и легковая машина со скоростью 56 км/ч через сколько часов они встретятся, если расстояние между городами 693 км?

Answer 1

1)43+56=99 км в час скорость сближения
2)693:99=7 часов через сколько они встретятся

Answer 2

Надо поделить растояние на скорость сближения (693 : (56 +43))
1) 56 + 43 = 99 км,ч - скорость сближения
2)693:99........-ч они встретятся

Answer 3

Problem Analysis

We are given that a truck is traveling at a speed of 43 km/h and a car is traveling at a speed of 56 km/h. The distance between the two cities is 693 km. We need to determine how many hours it will take for the truck and the car to meet.

Calculation

To solve this problem, we can use the formula: time = distance / speed.

Let's calculate the time it will take for the truck and the car to meet.

The truck's speed is 43 km/h, and the distance between the cities is 693 km. Using the formula, we can calculate the time it will take for the truck to cover this distance: time = distance / speed = 693 km / 43 km/h.

Similarly, the car's speed is 56 km/h, and the distance between the cities is 693 km. Using the formula, we can calculate the time it will take for the car to cover this distance: time = distance / speed = 693 km / 56 km/h.

Let's calculate these values.

Calculation Results

The time it will take for the truck to cover the distance of 693 km is approximately 16.12 hours. The time it will take for the car to cover the distance of 693 km is approximately 12.38 hours.

Answer

Therefore, the truck and the car will meet after approximately 12.38 hours.

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