Question

Дорога от посёлка до станции идёт сначала в гору,а потом под гору 2 ч.Скорость его под гору была на 2 км/ч больше,чем а гору.С какой скоростью шел пешеход в гору и с какой под гору?

Answer 1

Всего он прошел х+2*(х+2) 
Х=5 км в гору
в гору прошел путь х*1=х а под гору 2 *(х+2) отсюда:х+2*(х+2)=19 пусть х в гору тогда  х+" под гору 3х=15
х+2х+4=19
5+2=7 км по гору

Answer 2

Calculation of Speeds

To determine the speed at which the pedestrian walked uphill and downhill, we need to analyze the given information.

According to the information provided, the road from the village to the station goes uphill first and then downhill for a total of 2 hours. The speed of the pedestrian downhill was 2 km/h faster than uphill.

Let's assume the speed of the pedestrian uphill is x km/h. Therefore, the speed downhill would be (x + 2) km/h.

Calculation of Distance

To calculate the distance, we need to use the formula: distance = speed × time.

Let's assume the distance uphill is d1 km and the distance downhill is d2 km.

According to the given information, the time taken to go uphill is the same as the time taken to go downhill, which is 2 hours.

Using the formula, we can write the following equations:

d1 = x × 2 (1) d2 = (x + 2) × 2 (2)

Solving the Equations

To find the values of x, d1, and d2, we can solve the equations (1) and (2) simultaneously.

From equation (1), we can express d1 in terms of x: d1 = 2x

Substituting this value into equation (2), we get: 2x = (x + 2) × 2

Simplifying the equation: 2x = 2x + 4

Subtracting 2x from both sides: 0 = 4

This equation has no solution, which means there is no consistent solution for the given information. It is not possible to determine the exact speeds at which the pedestrian walked uphill and downhill based on the provided information.

Please note that the search results did not provide any relevant information or formulas to solve this specific problem. Therefore, we cannot provide a definitive answer based on the available information.