Question

Здравствуйте! Помогите пожалуйста друзья, спасибо заранее.Из двух поселков, расстояние между которыми 68км, одновреммено навстречу друг другу направились велосипедист и пешеход. Скорость велесипедиста - 12км/ч, а скорость пешехода - 5км/ч. Какое расстояние было между велосипедистом и пешеходом через 3 часа?

Answer 1

Кратко!
68 - (12+5) * 3 = 17 км. было между велосипедистом и пешеходом через 3 часа.

С объяснением!!!
12*3 = 36 км за 3 часа проехал велосипедист
5 * 3 = 15 км за 3 часа прошел пешеход
36+15 = 51 км за 3 часа сократился путь
68 - 51 = 17 км расстояние между ними через 3 часа.

Answer 2

12км/ч+5км/ч=17км/ч
17км/ч×3=58км
68км-58км=10км
Відповідь:10км

Answer 3

Problem Analysis

We are given that two individuals, a cyclist and a pedestrian, start simultaneously from two villages that are 68 km apart. The cyclist's speed is 12 km/h, and the pedestrian's speed is 5 km/h. We need to determine the distance between the cyclist and the pedestrian after 3 hours.

Solution

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

Let's calculate the distance traveled by the cyclist and the pedestrian after 3 hours.

The distance traveled by the cyclist after 3 hours is: distance_cyclist = speed_cyclist × time = 12 km/h × 3 h = 36 km

The distance traveled by the pedestrian after 3 hours is: distance_pedestrian = speed_pedestrian × time = 5 km/h × 3 h = 15 km

Therefore, the distance between the cyclist and the pedestrian after 3 hours is: distance_between = distance_cyclist - distance_pedestrian = 36 km - 15 km = 21 km

Answer: The distance between the cyclist and the pedestrian after 3 hours is 21 km.

Conclusion

In this problem, we used the formula distance = speed × time to calculate the distance between a cyclist and a pedestrian after 3 hours. The cyclist traveled 36 km, the pedestrian traveled 15 km, and the distance between them is 21 km.