Question

С одной лыжной базы одновременно в противоположных направлениях вышли 2 лыжника.через 2 часа расстояние между ними было 60 км. Чему равна скорость второго лыжника, если скорость первого 14 км/ч? Пожалуйста помогите !:-) Зарание спасибо

Answer 1

1)14*2=28 км прошёл первый лыжник за 2 часа
2)60-28=32 км прошёл второй лыжник за 2 часа
3)32:2=16 км/час скорость второго лыжника
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Answer 2

Problem Analysis

We have two skiers who start from the same ski base in opposite directions. After 2 hours, the distance between them is 60 km. We need to find the speed of the second skier, given that the speed of the first skier is 14 km/h.

Solution

Let's assume the speed of the second skier is x km/h.

After 2 hours, the first skier would have traveled a distance of 14 km/h * 2 hours = 28 km.

The second skier would have also traveled a distance of x km/h * 2 hours = 2x km.

The total distance between the skiers after 2 hours is the sum of the distances traveled by each skier:

28 km + 2x km = 60 km

To find the value of x, we can solve the equation:

28 + 2x = 60

Calculation

Let's solve the equation to find the value of x:

28 + 2x = 60

Subtract 28 from both sides:

2x = 60 - 28

2x = 32

Divide both sides by 2:

x = 32 / 2

x = 16

Answer

The speed of the second skier is 16 km/h.

Please let me know if you need any further assistance!