Question

Сколько минут прошло с 7ч 20мин до 12ч40мин? 2.Реши задачу Автобиль двигался 2ч проезжая за 1ч 80 км и еще 3ч проезжая за 1ч60км .Какое расстояние проехал автомобиль за все время?

Answer 1

1)60*7+20=440 минут 60*12+40=760 минут 760-440=220 минут Ответ : 220 2)(80*2)+(60*3)=340км Ответ: 340км

Answer 2

1)320
2)180+160=340
если надо объяснить пиши...

Answer 3

Answer:

1. To calculate the number of minutes that have passed between 7 hours 20 minutes and 12 hours 40 minutes, we can subtract the earlier time from the later time.

- 12 hours 40 minutes - 7 hours 20 minutes = 5 hours 20 minutes

Since there are 60 minutes in an hour, we can convert the 5 hours to minutes:

- 5 hours * 60 minutes/hour = 300 minutes

Finally, we add the 300 minutes to the remaining 20 minutes:

- 300 minutes + 20 minutes = 320 minutes

Therefore, 320 minutes have passed between 7 hours 20 minutes and 12 hours 40 minutes.

2. To solve the problem, we need to calculate the total distance traveled by the car.

- In the first 2 hours, the car traveled at a rate of 80 km/h. Therefore, the distance traveled in the first 2 hours is:

- 2 hours * 80 km/h = 160 km

- In the next 3 hours, the car traveled at a rate of 60 km/h. Therefore, the distance traveled in the next 3 hours is:

- 3 hours * 60 km/h = 180 km

To find the total distance traveled, we add the distances traveled in the first 2 hours and the next 3 hours:

- 160 km + 180 km = 340 km

Therefore, the car traveled a total distance of 340 km.

Summary: 1. The number of minutes that have passed between 7 hours 20 minutes and 12 hours 40 minutes is 320 minutes. 2. The car traveled a total distance of 340 km.