Question

При школьный участок огородили изгородью.если расстояние между столбами будет 4 м, то не хватит 8 столбов. заготовленных столбов хватит,если расстояние между столбами будет равно 5 м. сколько столбов было заготовлено для изгороди?

Answer 1

Ограда имеет замкнутую форму, число столбов соответствует числу пролетов.
сумма всех пролетов ограды соответствует её длине. Длина ограды в обоих случаях одинакова.
пусть заготовлено Х столбов. тоесть длина ограды будет равна 4Х+8*4 или 5Х
решим уравнение 4Х+32=5Х
4Х-5Х=-32
-Х=-32 умножим на -1 обе части
Х=32 столба заготовлено

Answer 2

Calculating the Number of Fence Posts Needed

To calculate the number of fence posts needed for the school plot, we can use the information provided.

Given: - Distance between posts for the first scenario: 4m - Distance between posts for the second scenario: 5m - In the first scenario, 8 posts are not enough - In the second scenario, the available posts are enough

Let's calculate the number of fence posts needed for the school plot.

Calculation

Let's denote: - x as the number of fence posts - d1 as the distance between posts for the first scenario (4m) - d2 as the distance between posts for the second scenario (5m)

We can set up the following equations based on the given information: 1. For the first scenario: x * d1 > length of the plot 2. For the second scenario: x * d2 = length of the plot

Solution

Using the given information, we can solve for the number of fence posts needed.

From the given information, we have: - x * 4m > length of the plot - x * 5m = length of the plot

By comparing the two scenarios, we can solve for the number of fence posts needed.

Conclusion

The number of fence posts needed for the school plot can be calculated using the given information.