Question

Из двух населенных пунктов, расстояние между которыми 28,9 км выехали два велосепидиста навстречу друг другу. Скорость первого 13,6 км/ч, скорость второго равна 0,7 скорости первого. Сколько % всего пути составит расстояние между велосепедистами через 1 час после начала движения?

Answer 1

13.6*0.7=9.52км/час скорость второго
13,6+9,52=23,12км/час скорость сближения (вместе проедут за час)
28,9-23,123=5,78 км расстояние между ними через час
5,78:28,9*100%=20% всего пути между ними через час

Answer 2

13,6*0,7=9,52км/ч скорость 2
13,6+9,52=23,12км проехали вместе за час
28,9-23,12=5,78км расстояние между ними через час
28,9км-100%
5,78км-х%
х=5,78*100:28,9=20% всего пути составит расстояние между велосипедистами через 1 час после начала движения

Answer 3

Problem Analysis

We have two cyclists who start from two different points and are moving towards each other. The distance between the two points is 28.9 km. We are given the speed of the first cyclist and the speed of the second cyclist, which is 0.7 times the speed of the first cyclist. We need to calculate the total distance between the two cyclists after 1 hour of starting their journey.

Solution

To find the total distance between the two cyclists after 1 hour, we need to calculate the distance covered by each cyclist in 1 hour and then add those distances together.

Let's calculate the distance covered by the first cyclist in 1 hour: - Speed of the first cyclist = 13.6 km/h - Distance covered by the first cyclist in 1 hour = Speed * Time = 13.6 km/h * 1 hour = 13.6 km

Now, let's calculate the distance covered by the second cyclist in 1 hour: - Speed of the second cyclist = 0.7 * Speed of the first cyclist = 0.7 * 13.6 km/h = 9.52 km/h - Distance covered by the second cyclist in 1 hour = Speed * Time = 9.52 km/h * 1 hour = 9.52 km

Finally, let's calculate the total distance between the two cyclists after 1 hour: - Total distance = Distance covered by the first cyclist + Distance covered by the second cyclist = 13.6 km + 9.52 km = 23.12 km

Therefore, the total distance between the two cyclists after 1 hour of starting their journey is 23.12 km.

Answer

The total distance between the two cyclists after 1 hour of starting their journey is 23.12 km.