Question

<p>Если ехать из Северной Осетии в Грузию по Военно-Грузинской дороге,то первую часть пути необходимо проделать в гору,до места,которое называется Крестовый перевал,а остальной путь-под гору.Автомобиль при движении в гору преодолел 112 км за 3 часа 20 мин,а при движени под гору- 95,5 км за 2 часа 40 мин.Найдите среднюю скорость автомобиля на всем пути. Плизз помогите решить!!!!!!</p>

Answer 1

3ч20мин=3,33ч
2ч40мин=2,67ч

1)   112+95,5=207,5(км)-пройдено всего
2)   3,33+2,67=6(ч)-время в движении
3)   207,5:6=34,58(км/ч)-средняя скорость авто на всем пути

Answer 2

To find the average speed of the car for the entire journey, we can use the formula:

Average Speed = Total Distance / Total Time

Let's calculate the total distance and total time for the journey.

Calculation of Total Distance:

The car traveled 112 km uphill and 95.5 km downhill. Therefore, the total distance is the sum of these two distances.

Total Distance = 112 km + 95.5 km

Calculation of Total Time:

The car took 3 hours and 20 minutes (or 3.33 hours) to travel uphill and 2 hours and 40 minutes (or 2.67 hours) to travel downhill. Therefore, the total time is the sum of these two times.

Total Time = 3.33 hours + 2.67 hours

Now, we can calculate the average speed using the formula mentioned above.

Calculation of Average Speed:

Average Speed = Total Distance / Total Time

Let's substitute the values and calculate the average speed.

Average Speed = (112 km + 95.5 km) / (3.33 hours + 2.67 hours)

Please note that the given information does not specify the units for speed. Therefore, the average speed will be in km/hour.

Now, let's calculate the average speed using the given values.

Average Speed = (112 km + 95.5 km) / (3.33 hours + 2.67 hours)

Average Speed = 207.5 km / 6 hours

Average Speed ≈ 34.58 km/hour

Therefore, the average speed of the car for the entire journey is approximately 34.58 km/hour.

Please let me know if there's anything else I can help you with!