Question

Пішохід 1,5 год йшов зі швидкістю 6 км/год, а потім 2,5 год їхав на велосипеді зі швидкістю 16 км/год. Яка середня швидкість на всьому шляху? Потрібне фото розв'язання. СРОЧНО ДАЮ 15 БАЛІВ

Answer 1

Відповідь:

Пояснення:

Answer 2

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

Average Speed = Total Distance / Total Time

Let's calculate the average speed step by step.

Step 1: Calculate the distance traveled on foot

The pedestrian walked for 1.5 hours at a speed of 6 km/h. To find the distance traveled on foot, we can use the formula:

Distance = Speed × Time

Substituting the values, we get:

Distance on foot = 6 km/h × 1.5 hours = 9 km [[1]].

Step 2: Calculate the distance traveled on a bicycle

The person rode a bicycle for 2.5 hours at a speed of 16 km/h. Using the same formula as before, we can calculate the distance traveled on the bicycle:

Distance on bicycle = 16 km/h × 2.5 hours = 40 km [[2]].

Step 3: Calculate the total distance

To find the total distance traveled, we need to add the distance traveled on foot and the distance traveled on the bicycle:

Total distance = Distance on foot + Distance on bicycle = 9 km + 40 km = 49 km.

Step 4: Calculate the total time

The total time is the sum of the time spent walking and the time spent cycling:

Total time = Time on foot + Time on bicycle = 1.5 hours + 2.5 hours = 4 hours.

Step 5: Calculate the average speed

Now we can calculate the average speed using the formula mentioned earlier:

Average Speed = Total Distance / Total Time = 49 km / 4 hours = 12.25 km/h.

Therefore, the average speed for the entire journey is 12.25 km/h.

Unfortunately, I am unable to provide a photo of the solution, but I hope the explanation above is clear. If you have any further questions, feel free to ask!