Question

Реши задачи уравнением Вертолёт преодолел расстояние 3150км за 7 часов.За сколько часов вертолёт преодолеет это расстояние,если его скорость увеличивается на 180км/ч?

Answer 1

1)3150÷7=450(км/ч)-скорость сначала
2)450+180=630(км/ч)-после
3)3150÷630=5(ч)
Ответ: Вертолет преодолеет это расстояние за 5 часов если увеличет скорость на 180 км/ч.
Надеюсь что я ответила правильно

Answer 2

X*7=3150
x=3150:7
x=450км/ч

450+180=630

x*630=3150
x=3150:630
x=5 ч

Answer 3

Problem Analysis

We are given that a helicopter traveled a distance of 3150 km in 7 hours. We need to find out how long it will take for the helicopter to cover the same distance if its speed increases by 180 km/h.

Solution

Let's assume the original speed of the helicopter is x km/h. According to the given information, the helicopter traveled a distance of 3150 km in 7 hours. We can use the formula distance = speed × time to write the equation:

3150 = x × 7

Now, we need to find the time it will take for the helicopter to cover the same distance if its speed increases by 180 km/h. Let's call this new time t. The new speed will be x + 180 km/h. We can use the same formula to write the equation:

3150 = (x + 180) × t

To solve for t, we can rearrange the equation:

t = 3150 / (x + 180)

Now we can substitute the value of x from the first equation into the second equation to find the value of t.

Calculation

Let's calculate the value of t using the given information.

From the first equation, we have:

3150 = x × 7

Dividing both sides of the equation by 7, we get:

x = 3150 / 7

Simplifying the right side of the equation, we have:

x = 450

Now, substituting the value of x into the second equation, we have:

t = 3150 / (450 + 180)

Simplifying the right side of the equation, we have:

t = 3150 / 630

Calculating the value of t, we get:

t = 5

Answer

Therefore, if the helicopter's speed increases by 180 km/h, it will take the helicopter 5 hours to cover a distance of 3150 km.

Please let me know if I can help you with anything else.