Question

Из двух городов,находящихся на расстоянии 600км,одновременно навстречу друг другу выехали две автомашины.Скорость одной из них 72 км/ч,другой-58км/ч.На сколько уменьшится расстояние между ними через: 1)1ч; 2)2ч; 3)4ч?

Answer 1

А)130км б) 260км в) 520км

Answer 2

Calculation of the Decrease in Distance

To calculate the decrease in distance between the two cars, we need to determine the distance each car travels in a given time period.

Let's calculate the decrease in distance for each time period:

1) 1 hour: - Car 1 travels at a speed of 72 km/h, so it covers a distance of 72 km in 1 hour. - Car 2 travels at a speed of 58 km/h, so it covers a distance of 58 km in 1 hour. - The total decrease in distance is the sum of the distances covered by both cars: 72 km + 58 km = 130 km.

2) 2 hours: - Car 1 travels at a speed of 72 km/h, so it covers a distance of 72 km in 1 hour. - Car 2 travels at a speed of 58 km/h, so it covers a distance of 58 km in 1 hour. - The total decrease in distance is the sum of the distances covered by both cars for 2 hours: 2 * (72 km + 58 km) = 260 km.

3) 4 hours: - Car 1 travels at a speed of 72 km/h, so it covers a distance of 72 km in 1 hour. - Car 2 travels at a speed of 58 km/h, so it covers a distance of 58 km in 1 hour. - The total decrease in distance is the sum of the distances covered by both cars for 4 hours: 4 * (72 km + 58 km) = 520 km.

Therefore, the decrease in distance between the two cars will be: 1) 130 km 2) 260 km 3) 520 km

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