Question

Автомобіль їхав 2 години зі швидкістю 72,6 км/год із години 75 км /год. Знайти середню швидкість автомобіля на всьому шляху ПОМОГИТЕ РЕШИТЬ ЗАДАЧУ ПОЖАЙЛУСТА!!!!!​ СРОЧНО ДАЮ 25 БАЛОВ​

Answer 1

Ответ:

25 км в час надеюсь помог !!!!!!!!!

Answer 2

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

Average Speed = Total Distance / Total Time

In this case, we have two different speeds and two different durations. Let's calculate the average speed step by step.

Step 1: Calculate the total distance

To calculate the total distance, we need to add up the distances covered at each speed. We can do this by multiplying the speed by the time traveled at that speed.

For the first part of the journey: Speed = 72.6 km/h Time = 2 hours

Distance1 = Speed1 * Time1 = 72.6 km/h * 2 hours = 145.2 km

For the second part of the journey: Speed = 75 km/h Time = 1 hour

Distance2 = Speed2 * Time2 = 75 km/h * 1 hour = 75 km

Total Distance = Distance1 + Distance2 = 145.2 km + 75 km = 220.2 km

Step 2: Calculate the total time

To calculate the total time, we need to add up the durations of each part of the journey.

Total Time = Time1 + Time2 = 2 hours + 1 hour = 3 hours

Step 3: Calculate the average speed

Now that we have the total distance and the total time, we can calculate the average speed.

Average Speed = Total Distance / Total Time = 220.2 km / 3 hours ≈ 73.4 km/h

Therefore, the average speed of the car for the entire journey is approximately 73.4 km/h.

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