Question

Алёша с папой шел к озеру 30 минутсо скоростью 80м.мин., а затем еще 10 минут со скоростью 20м.мин. меньше. Каково растояние от Алешиного дома до озера?

Answer 1

Решение:
Первая часть расстояния к озеру составила:
30*80=2400 (м)
Вторая часть:
10*20=200 (м)
Расстояние от дома до озера:
2400 +200=2600 (м)=2,6км

Ответ: 2,6км

Answer 2

Calculation of Distance from Alesha's House to the Lake

To calculate the distance from Alesha's house to the lake, we need to consider the time and speed at which Alesha and his father walked.

According to the information provided, Alesha and his father walked to the lake for 30 minutes at a speed of 80 meters per minute. After that, they walked for an additional 10 minutes at a speed that is 20 meters per minute less than their initial speed.

Let's break down the calculation step by step:

1. Distance covered in the first 30 minutes: - Speed: 80 meters per minute - Time: 30 minutes - Distance = Speed × Time = 80 meters/minute × 30 minutes = 2400 meters

2. Distance covered in the next 10 minutes: - Speed: 80 meters per minute - 20 meters per minute = 60 meters per minute - Time: 10 minutes - Distance = Speed × Time = 60 meters/minute × 10 minutes = 600 meters

3. Total distance from Alesha's house to the lake: - Total distance = Distance covered in the first 30 minutes + Distance covered in the next 10 minutes - Total distance = 2400 meters + 600 meters = 3000 meters

Therefore, the distance from Alesha's house to the lake is 3000 meters.

Please note that the sources provided do not contain any relevant information for this calculation.