Question

Ломаная состоит из трёх звеньев. длина одного звенья 4 см, второе звено в 5 раз длинее первого, а третье на 8 см короче второго.во сколько раз первое ломаной короче третьего?

Answer 1

1 звено- 4 см←←←←←←↑
2 3вено- ? в 5 раз длиннее↑←↑
3 звено- ? на 8 короче             ↑
 1) 4*5=20-2 звено
2) 20-8=12--3 звено
3) 12/4= 3--ответ

Answer 2

1 звено-4см
2 звено- ?, в5р.дл. 1звена
3 звено- на 8см кор. 2 звена

4*5=20см 2звено
20-8=12см 3 звено
12:4=3 , в 3 раза 1 звено короче третьего

Answer 3

Problem Analysis

We are given a broken line consisting of three links. The length of the first link is 4 cm, the second link is 5 times longer than the first link, and the third link is 8 cm shorter than the second link. We need to determine how many times the first link is shorter than the third link.

Solution

To solve this problem, we can follow these steps: 1. Calculate the length of the second link. 2. Calculate the length of the third link. 3. Determine the ratio of the length of the first link to the length of the third link.

Let's calculate the lengths of the links and find the ratio.

Calculation

1. Length of the second link: - The second link is 5 times longer than the first link, which is 4 cm. - Therefore, the length of the second link is 5 * 4 cm = 20 cm. 2. Length of the third link: - The third link is 8 cm shorter than the second link, which is 20 cm. - Therefore, the length of the third link is 20 cm - 8 cm = 12 cm. 3. Ratio of the length of the first link to the length of the third link: - The length of the first link is 4 cm, and the length of the third link is 12 cm. - Therefore, the first link is 3 times shorter than the third link. (12 cm / 4 cm = 3)

Answer

The first link of the broken line is 3 times shorter than the third link.

Example

Let's consider an example to illustrate the solution. If the length of the first link is 4 cm, the length of the second link would be 20 cm (5 times longer), and the length of the third link would be 12 cm (8 cm shorter than the second link). Therefore, the first link is 3 times shorter than the third link.

Conclusion

In conclusion, the first link of the broken line is 3 times shorter than the third link.