Question

Из одного посёлка в разных направлениях выехали два велосипедиста.Через несколько часов расстояние между ними будет 104км,если скорость первого 15 км/ч,а второго на 4 км\ч меньше? Пожалуйста помогите.

Answer 1

15-4=11км/скорость 2 велосипедиста
15+11=26 км/ч едут 2 велосипедиста
104:26=4ч
ответ: через 4 часа

Answer 2

1) 15-4= 11 (км/ч)- скорость второго велосипеда
2) 15+11= 26 км/ч- общая скорость
3) 104 : 26= 4(ч)- время
Ответ: расстояние 104 километра будет через 4 часа

Answer 3

Problem Analysis

Two cyclists start from the same village and travel in different directions. After a few hours, the distance between them is 104 km. The first cyclist has a speed of 15 km/h, while the second cyclist's speed is 4 km/h less than the first cyclist's speed.

Solution

To solve this problem, we can set up an equation based on the given information and solve for the time it takes for the two cyclists to be 104 km apart.

Let's assume that the time taken by both cyclists is the same. Let's call this time "t" hours.

The distance traveled by the first cyclist can be calculated using the formula: distance = speed * time. Therefore, the distance traveled by the first cyclist is 15t km.

The distance traveled by the second cyclist can be calculated using the same formula: distance = speed * time. However, the speed of the second cyclist is 4 km/h less than the speed of the first cyclist, so the speed of the second cyclist is (15 - 4) km/h = 11 km/h. Therefore, the distance traveled by the second cyclist is 11t km.

According to the problem, the distance between the two cyclists after a few hours is 104 km. Therefore, we can set up the following equation:

15t + 11t = 104

Simplifying the equation:

26t = 104

Dividing both sides of the equation by 26:

t = 104 / 26

Simplifying further:

t = 4

Therefore, it takes 4 hours for the two cyclists to be 104 km apart.

Answer

The two cyclists will be 104 km apart after 4 hours.

Note: The solution provided above is based on the information given in the problem statement. If there are any additional constraints or details that need to be considered, please provide them for a more accurate solution.