Question

Два лыжника вышли одновременно из одного пункта в противоположных направлениях Скорость одного лыжника 15 км ч а другого 10 км ч На сколько километров они удалятся друг от друга за 1 час за 2 часа за 3 часа__________18 баллов

Answer 1

1). 15 + 10 = 25 (км/ч) - скорость отдаления.
2). 25 * 1 = 25 (км) - за 1 час.
3). 25 * 2 = 50 (км) - за 2 часа.
4). 25 * 3 = 75 (км) - за 3 часа.
Ответ: 25 км, 50 км, 75 км.

Answer 2

Calculation of Distance between Skiers

To calculate the distance between the two skiers, we need to determine how far each skier travels in a given time period. Let's calculate the distances for 1 hour, 2 hours, and 3 hours.

1. Distance after 1 hour: - Skier 1's speed: 15 km/h - Skier 2's speed: 10 km/h - Distance traveled by Skier 1 in 1 hour: 15 km/h * 1 h = 15 km - Distance traveled by Skier 2 in 1 hour: 10 km/h * 1 h = 10 km

2. Distance after 2 hours: - Distance traveled by Skier 1 in 2 hours: 15 km/h * 2 h = 30 km - Distance traveled by Skier 2 in 2 hours: 10 km/h * 2 h = 20 km

3. Distance after 3 hours: - Distance traveled by Skier 1 in 3 hours: 15 km/h * 3 h = 45 km - Distance traveled by Skier 2 in 3 hours: 10 km/h * 3 h = 30 km

Therefore, the distances between the two skiers after 1 hour, 2 hours, and 3 hours are as follows: - After 1 hour: 15 km - After 2 hours: 30 km - After 3 hours: 45 km

Please note that the distances mentioned above are calculated assuming that the skiers maintain a constant speed throughout the given time periods.