Question

Помогите пожалуйста задача:Голубь пролетел расстояние равное 420 м за 25 с.● За сколько секунд он пролитит расстояние, равное 672м?●Какое расстояние пролитит голубь за 30с?приз!!!помогите.

Answer 1

1)420:25=16,8(м)-голубь пролетит за 1 секунду
2)672:16,8=40(сек)- за столько голубь пролетит 672 метра
3)16,8*30=504(м)- столько голубь пролетит за 30 секунд

Answer 2

Problem Analysis

We are given that a pigeon flew a distance of 420 m in 25 seconds. We need to find out how many seconds it will take for the pigeon to fly a distance of 672 m and what distance the pigeon will fly in 30 seconds.

Solution

To find out how many seconds it will take for the pigeon to fly a distance of 672 m, we can set up a proportion using the given information:

Proportion 1: ``` 420 m / 25 s = 672 m / x s ```

To find out what distance the pigeon will fly in 30 seconds, we can set up another proportion using the given information:

Proportion 2: ``` 420 m / 25 s = y m / 30 s ```

Let's solve these proportions step by step.

Finding the Time to Fly 672 m

To find the time it will take for the pigeon to fly a distance of 672 m, we can solve Proportion 1:

420 m / 25 s = 672 m / x s

Cross-multiplying, we get:

420 m * x s = 672 m * 25 s

Simplifying, we have:

420x = 16800

Dividing both sides by 420, we find:

x = 16800 / 420
x = 40

Therefore, it will take the pigeon 40 seconds to fly a distance of 672 m.

Finding the Distance in 30 Seconds

To find the distance the pigeon will fly in 30 seconds, we can solve Proportion 2:

420 m / 25 s = y m / 30 s

Cross-multiplying, we get:

420 m * 30 s = 25 s * y m

Simplifying, we have:

12600 = 25y

Dividing both sides by 25, we find:

y = 12600 / 25
y = 504

Therefore, the pigeon will fly a distance of 504 m in 30 seconds.

Summary

To summarize the solutions: - The pigeon will fly a distance of 672 m in 40 seconds. - The pigeon will fly a distance of 504 m in 30 seconds.

I hope this helps! Let me know if you have any further questions.