Question

Из двух городов расстояние между которомы 390кмодновременно навстречу друг другу выехали два мотоциклиста и встретились через 3 часа. Один ехал 60км.час .Найти скорость второго? ПОжалуйстааа помогите

Answer 1

1) 60*3=180(км)- поехал 1 мотоциклист.
2)390-180=210(км)-проехал 2 мотоциклист.
3)210:3=70(км/ч)
Ответ: 70 км/ч.

Answer 2

Problem Analysis

We have two motorcyclists who start from two different cities and meet each other after 3 hours. The distance between the two cities is 390 km. We know the speed of one motorcyclist, which is 60 km/h. We need to find the speed of the second motorcyclist.

Solution

Let's assume the speed of the second motorcyclist is x km/h.

We can use the formula: speed = distance / time to find the distance traveled by each motorcyclist.

For the first motorcyclist: - Speed = 60 km/h - Time = 3 hours - Distance = Speed * Time = 60 km/h * 3 hours = 180 km

For the second motorcyclist: - Speed = x km/h - Time = 3 hours - Distance = Speed * Time = x km/h * 3 hours = 3x km

Since the total distance between the two cities is 390 km, we can set up the following equation:

180 km + 3x km = 390 km

Simplifying the equation:

3x km = 390 km - 180 km 3x km = 210 km

Now, we can solve for x by dividing both sides of the equation by 3:

x km = 210 km / 3 x km = 70 km/h

Therefore, the speed of the second motorcyclist is 70 km/h.

Answer

The speed of the second motorcyclist is 70 km/h.