Question

Мотоциклист выехал из Москвы в клин со скоростью 45км/ч.в дороге он сделал 2 остановки:одну на 25 мин,а вторую на 38 мин. в клин мотоциклист прибыл в 13.20.в котором часу он выехал мы Москвы если растянется от Москвы до клина 90 км

Answer 1

13.20=время
25+48=1ч+13мин остановки
90/45=2ч пути, отсюда
13:20-1:13-2:00=10:07

Answer 2

Calculating the Departure Time from Moscow

To calculate the departure time from Moscow, we can use the information provided about the distance, speed, and duration of the stops.

Given: - Distance from Moscow to Klin: 90 km - Speed of the motorcyclist: 45 km/h - First stop duration: 25 minutes - Second stop duration: 38 minutes - Arrival time in Klin: 13:20

We can calculate the total travel time and then work backwards to find the departure time from Moscow.

Calculating Total Travel Time

First, let's calculate the total duration of the trip, including the stops.

The total travel time can be calculated using the formula: \[ \text{Total travel time} = \frac{\text{Distance}}{\text{Speed}} + \text{Stop 1 duration} + \text{Stop 2 duration} \]

Given: - Distance: 90 km - Speed: 45 km/h - Stop 1 duration: 25 minutes - Stop 2 duration: 38 minutes

Using the given values: \[ \text{Total travel time} = \frac{90}{45} + 25 + 38 \]

Let's calculate the total travel time.

\[ \text{Total travel time} = 2 + 25 + 38 = 65 \text{ minutes} \]

Calculating Departure Time

Now, let's calculate the departure time from Moscow using the total travel time and the arrival time in Klin.

Given: - Total travel time: 65 minutes - Arrival time in Klin: 13:20

We can work backwards to find the departure time from Moscow: \[ \text{Departure time from Moscow} = \text{Arrival time in Klin} - \text{Total travel time} \]

Let's calculate the departure time.

\[ \text{Departure time from Moscow} = 13:20 - 65 \text{ minutes} \]

\[ \text{Departure time from Moscow} = 12:15 \]

So, the motorcyclist departed from Moscow at 12:15 if the distance from Moscow to Klin is 90 km and the given speed and stop durations are accurate.

Final Note

The calculated departure time is based on the provided information and calculations. If there are any additional factors or details that need to be considered, please feel free to provide them for further analysis.