Question

1 способ. 1) 10×3=30(км) - S 1 2) 22×3=66(км) - S 2 3) 66+30=96(км) - S 2способ. 1) 10+22=30(км/ч) - V сближение. 2) 30×3=90(км) - S расстояние Почему то 2 способ не получилось решить как 1. Так что 2 не точный.

Answer 1

V скорость                     t время                 S расстояние                  74 км/ч                                                              ? км                                                           6 ч                                     ⇒ ? км                  42 км/ч                                                              ? км                                                1 способ.
1). 74 · 6 = 444 (км) - расстояние, которое проехал 1 поезд.2). 42 · 6 = 252 (км) - расстояние, которое проехал 2 поезд.3). 444 + 252 = 696 (км) - расстояние между городами.
Ответ: 696 км
                                              2 способ.
1). 74 + 42 = 116 (км) - скорость сближения.2). 116 · 6 = 696 (км) - расстояние между городами.
Ответ:696 км

Answer 2

Calculation of Distance and Speed

To answer your question, let's break down the calculations and analyze each step.

1st Method: 1) 10 × 3 = 30 (km) - This calculation represents the distance covered in the first scenario. The speed is 10 km/h, and the time is 3 hours. Multiplying these values gives us the total distance traveled, which is 30 km.

2) 22 × 3 = 66 (km) - This calculation represents the distance covered in the second scenario. The speed is 22 km/h, and the time is 3 hours. Multiplying these values gives us the total distance traveled, which is 66 km.

3) 66 + 30 = 96 (km) - This calculation represents the total distance covered when adding the distances from the first and second scenarios. Adding 66 km and 30 km gives us a total distance of 96 km.

2nd Method: 1) 10 + 22 = 30 (km/h) - This calculation represents the combined speed of the two objects. The first object is moving at a speed of 10 km/h, and the second object is moving at a speed of 22 km/h. Adding these speeds together gives us a combined speed of 30 km/h.

2) 30 × 3 = 90 (km) - This calculation represents the distance covered when using the combined speed of 30 km/h for a duration of 3 hours. Multiplying the speed by the time gives us a total distance of 90 km.

It seems that the second method did not yield the same result as the first method. This discrepancy could be due to a misunderstanding or error in the calculations. To accurately compare the two methods, it is important to ensure that the calculations are performed correctly.

If you have any further questions or need clarification, please let me know!