Question

В одно и то же путишествие поехали двое автомобиля. один двигался со скоростью 70км/ч и за 2 часа проделал тот де путь, что другой за 7 часов. найти скорость второго автомобиля​

Answer 1

Ответ:

Пошаговое объяснение:1) 70×2=140(км)-S

2) 140÷7=20(км/ч.)-v 2 автомобиля

Ответ:20 км/ч.

Желаю удачи

Answer 2

Ответ:

14 км

Пошаговое объяснение:

70 км =2часа

7 часов - 14 км...

Answer 3

Calculation of the Second Car's Speed

To find the speed of the second car, we can use the formula:

Speed = Distance / Time

Let's denote the distance traveled by both cars as "d" and the time taken by the first car as "t1" and the second car as "t2."

According to the given information, the first car traveled the distance "d" in 2 hours, while the second car traveled the same distance in 7 hours.

Using the formula mentioned above, we can set up the following equations:

Speed of the first car (v1) = d / t1

Speed of the second car (v2) = d / t2

We know that the speed of the first car (v1) is 70 km/h, and the time taken by the first car (t1) is 2 hours.

Substituting these values into the equation for the speed of the first car, we get:

70 km/h = d / 2 hours

Simplifying the equation, we find:

d = 70 km/h * 2 hours

d = 140 km

Now, we can substitute the value of "d" into the equation for the speed of the second car:

v2 = 140 km / 7 hours

Simplifying the equation, we find:

v2 = 20 km/h

Therefore, the speed of the second car is 20 km/h.