Question

Машина їхала 3 год. Зі швидкістю 58,4 км/год і 4 год. Зі швидкістю 61,2 км/год. Знайти середню швидкість машини на всьому шляху Помогите пож срочно

Answer 1

Відповідь:

Покрокове пояснення:

Answer 2

Calculation of Average Speed

To find the average speed of a car over the entire journey, we need to calculate the total distance traveled and the total time taken.

Given the following information: - The car traveled for 3 hours at a speed of 58.4 km/h. - The car traveled for 4 hours at a speed of 61.2 km/h.

We can calculate the total distance traveled by adding the distances covered during each leg of the journey: - Distance covered in the first 3 hours: 58.4 km/h * 3 hours = 175.2 km. - Distance covered in the next 4 hours: 61.2 km/h * 4 hours = 244.8 km.

The total distance traveled is the sum of these two distances: 175.2 km + 244.8 km = 420 km.

To calculate the average speed, we divide the total distance traveled by the total time taken: - Average speed = Total distance / Total time = 420 km / (3 hours + 4 hours) = 420 km / 7 hours.

Therefore, the average speed of the car over the entire journey is 60 km/h.