Question

СРОЧНО! ДАЮ 55 БАЛЛОВ.Если ковёр — самолет летит со скоростью 35 км/ч, то он пролетает расстояние от одного замка, до другого за 45 минут. За какое время это же расстояние пролетит ковёр-самолет, если будет лететь со скоростью 28 км/ч.

Answer 1

Ответ: 0,9375 ч или 56 мин 25 сек

Пошаговое объяснение:

35 * 0,75 = 26,25 км расстояние , которое пролетит ковер- самолет за 45 минут

26,25 : 28= 0,9375 ч пролетит ковёр-самолет, если будет лететь со скоростью 28 км/ч.

Answer 2

Problem Analysis

We are given that a carpet-plane is flying at a speed of 35 km/h and it takes 45 minutes to fly from one castle to another. We need to determine how long it would take for the carpet-plane to fly the same distance at a speed of 28 km/h.

Solution

To solve this problem, we can use the formula:

Time = Distance / Speed

Let's calculate the time it takes for the carpet-plane to fly from one castle to another at a speed of 35 km/h:

Time1 = Distance / Speed1

Given that the speed is 35 km/h and the time is 45 minutes, we need to convert the time to hours:

Time1 = 45 minutes * (1 hour / 60 minutes) = 0.75 hours

Now, we can calculate the distance using the formula:

Distance = Speed * Time

Distance = 35 km/h * 0.75 hours = 26.25 km

Now, let's calculate the time it would take for the carpet-plane to fly the same distance at a speed of 28 km/h:

Time2 = Distance / Speed2

Substituting the values:

Time2 = 26.25 km / 28 km/h

Calculating the time:

Time2 = 0.9375 hours

Converting the time to minutes:

Time2 = 0.9375 hours * (60 minutes / 1 hour) = 56.25 minutes

Therefore, the carpet-plane would take approximately 56.25 minutes to fly the same distance at a speed of 28 km/h.

Answer

If the carpet-plane flies at a speed of 28 km/h, it would take approximately 56.25 minutes to fly the same distance from one castle to another.