Question

Из двух городов выехали одновременно навстречу друг другу два мотоциклиста.Один из них двигался со средней скоростью 70 км/ч и проехал до встречи 140 км, а другой двигался со средней скоростью 65 км/ч. Найди расстояние между городами.

Answer 1

найдем время - S/V=140/70=2 ч.

найдем путь пройденным вторым - V*t=65*2=130 км

общий путь = 130 + 140 = 270 км

Answer 2

решение:
140 / 70 = 2 часа потратил 1й мотоциклист до встречи
2 * 65 = 130 км проехал до встречи 2й мотоциклист
130 + 140 = 270 км расстояние между городами.
Ответ: расстояние между городами 270 км.

Answer 3

Problem Analysis

Two motorcyclists are traveling towards each other from two different cities. One motorcyclist is traveling at an average speed of 70 km/h and has traveled 140 km before the meeting. The other motorcyclist is traveling at an average speed of 65 km/h. We need to find the distance between the two cities.

Solution

To find the distance between the two cities, we can use the formula:

Distance = Speed x Time

Let's calculate the time taken by each motorcyclist to reach the meeting point.

For the first motorcyclist: - Speed = 70 km/h - Distance traveled = 140 km - Time = Distance / Speed = 140 km / 70 km/h = 2 hours

For the second motorcyclist: - Speed = 65 km/h - Distance traveled = ? - Time = 2 hours (since they both started at the same time and met after 2 hours)

Now, let's calculate the distance traveled by the second motorcyclist using the formula:

Distance = Speed x Time

Distance = 65 km/h x 2 hours = 130 km

Therefore, the distance between the two cities is 130 km.

Answer

The distance between the two cities is 130 km.