Question

Расстояние между пунктами A и B автомобиль проехал за 1,2 часа, а автобус — за 2,1 часа. Определи скорость каждой машины, если автомобиль двигался на 36 км/ч быстрее, чем автобус. Ответ: скорость автобуса — км/ч; скорость автомобиля — км/ч.

Answer 1

Ответ:

скорость автобуса - 48 км/ч, скорость автомобиля - 84 км/ч

Пошаговое объяснение:

пусть скорость автобуса будет х.

тогда скорость автомобиля равна х+36.

получаем равенство:

(х+36)*1,2=х*2,1

1,2х +43,2=2,1х

43,2=0,9х

х=43,2/0,9

х=48 км/ч (скорость автобуса)

х+36=84 км/ч (скорость автомобиля)

Answer 2

#### Calculation of Speeds To determine the speeds of the car and the bus, we need to use the formula: **Speed = Distance / Time** Given that the car traveled the distance between points A and B in 1.2 hours, and the bus traveled the same distance in 2.1 hours, we can calculate their speeds. Let's assume the speed of the bus is **x** km/h. Since the car is traveling 36 km/h faster than the bus, the speed of the car would be **x + 36** km/h. Now, let's calculate the distance between points A and B. Unfortunately, the exact distance is not provided in the question. Therefore, we cannot provide the specific speeds of the car and the bus. However, we can still demonstrate the calculation process. #### Calculation Process Let's assume the distance between points A and B is **d** km. For the car: Speed of the car = (Distance / Time) = (d km / 1.2 hours) = (d/1.2) km/h For the bus: Speed of the bus = (Distance / Time) = (d km / 2.1 hours) = (d/2.1) km/h Since the car is traveling 36 km/h faster than the bus, we can write the equation: (d/1.2) km/h = (d/2.1) km/h + 36 km/h Simplifying the equation, we get: (d/1.2) - (d/2.1) = 36 To solve this equation, we need to know the exact value of the distance between points A and B. Unfortunately, that information is not provided in the question. Therefore, we cannot determine the specific speeds of the car and the bus. However, we have provided the calculation process for you to understand how to solve similar problems in the future. Please note that the information provided in this response is based on the assumption that the distance between points A and B is denoted by **d** km.