Question

Саша вышел на лыжную тренировку в 8часов утра.Через 15 минут вслед за ним выбежал пес Шарик. Через сколько минут Шарик догонит Сашу,если он бежит со скоростью 310м/мин,а Саша идет со скоростью 260 м/мин?

Answer 1

1)260*15=3900 м -расстояние,которое нужно сократить Шарику.

2)310-260=50м/мин-разница скоростей.

3)3900:50=через 78мин Шарик догонит Сашу.

4)8ч+78мин=в 9ч:18мин Шарик догонит Сашу

Answer 2

To find out how long it will take for the dog, Sharik, to catch up to Sasha, we can use the formula:

Time = Distance / Speed

Let's calculate the time it will take for Sharik to catch up to Sasha.

Calculating the Time:

The distance Sharik needs to cover to catch up to Sasha is the same as the distance Sasha has already covered. Since Sasha has been running for 15 minutes, we need to convert this time into hours to match the speed units.

15 minutes = 15/60 hours = 0.25 hours

Now, we can calculate the time it will take for Sharik to catch up to Sasha:

Time = Distance / Speed

Time = 0.25 hours / (310 m/min - 260 m/min)

Simplifying the equation:

Time = 0.25 hours / 50 m/min

Time = 0.005 hours/min

To convert this time back to minutes, we can multiply it by 60:

Time = 0.005 hours/min * 60 min/hour

Time = 0.3 minutes

Therefore, it will take Sharik approximately 0.3 minutes to catch up to Sasha.

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