Question

Из двух городов расстояние между которыми 700 км выехали одновременно навстречу друг другу 2 автомобиля и встретились через 7 ч скорость первого 60км /ч найди скорость второго автомобиля .... СРОЧНО

Answer 1

1)700-420=280(......)-......
2)280:7=40(....)-...........
Ответ 40км/ч

Answer 2

1) скорость первого - 60, ехал он 7 часов, следовательно расстояние которое он проехал 60*7=420 км.
2) расстояние, которое проехал второй 700-420=280 км.
3) второй также ехал 7 часов, следовательно его скорость равна 280:7=40 км/ч

Answer 3

Problem Analysis

We have two cars that start from two different cities and travel towards each other. The distance between the cities is 700 km. The cars meet each other after 7 hours. We are given the speed of the first car, which is 60 km/h, and we need to find the speed of the second car.

Solution

To find the speed of the second car, we can use the formula: speed = distance / time.

Let's calculate the speed of the second car using this formula.

Calculation

The distance between the two cities is 700 km, and the cars meet each other after 7 hours.

Using the formula speed = distance / time, we can calculate the speed of the second car as follows:

speed of the second car = distance / time = 700 km / 7 hours = 100 km/h.

Therefore, the speed of the second car is 100 km/h.

Answer

The speed of the second car is 100 km/h.

Please let me know if there is anything else I can help you with.