Question

Из пункта а в пункт б ,расстояние между которыми 94 км отправились навстречу друг другу пешеход или велосипедист.скорость пешехода на 16 км/ч меньше скорости велосипедиста. Найти скорость пешехода, если они встретились через 4 часа

Answer 1

X км/час- скорость пешехода, (x+16) км/час-скорость велосипедиста. уравнение: 4*x+4*(x+16)=94; 4x+4x+64=94; 8x=30; x=30/8=3,75(км/час). 

Answer 2

На жмртмраттаьтртар срмипппо

Answer 3

Problem Analysis

We are given that two individuals, a pedestrian and a cyclist, start walking towards each other from points A and B, which are 94 km apart. The pedestrian's speed is 16 km/h slower than the cyclist's speed. We need to find the pedestrian's speed if they meet after 4 hours.

Solution

Let's assume the cyclist's speed is x km/h. Since the pedestrian's speed is 16 km/h slower, the pedestrian's speed can be represented as (x - 16) km/h.

To find the pedestrian's speed, we can use the formula: distance = speed × time.

The distance covered by the cyclist in 4 hours is 4x km, and the distance covered by the pedestrian in 4 hours is 4(x - 16) km.

Since they are walking towards each other, the sum of the distances covered by both the cyclist and the pedestrian should be equal to the total distance between points A and B, which is 94 km.

Therefore, we can write the equation: 4x + 4(x - 16) = 94.

Now, let's solve this equation to find the value of x.

Calculation

4x + 4(x - 16) = 94

Simplifying the equation: 4x + 4x - 64 = 94 8x - 64 = 94 8x = 94 + 64 8x = 158 x = 158 / 8 x = 19.75

Answer

The cyclist's speed is 19.75 km/h.

To find the pedestrian's speed, we can substitute the value of x into the expression (x - 16): Pedestrian's speed = 19.75 - 16 = 3.75 km/h.

Therefore, the pedestrian's speed is 3.75 km/h.

Note: The calculated values are rounded to two decimal places.