Question

Помогите,прошу!!! Длина прямоугольной формы в 2,5 раза длиннее ширины сетки, а для ограждения требуется 105.Сколько колонок потребуется для покрытия этого сада в 1,4 раза больше длины и в 1,2 раза больше его ширины?

Answer 1

Пусть ширина х, тогда длина 2,5х. Составим уравнение:
2(х+2,5х)=105
2х+5Х=105
7х=105
х=105:7
х=15 ширина
15*2,5=37,5 длина
2(15*1,2+37,5*1,4)=2(18+52,5)=2*70,5=141 колонка

Answer 2

Calculation of the Length and Width of the Rectangular Garden

To solve this problem, we need to determine the length and width of the rectangular garden based on the given information.

Let's assume that the width of the garden is x units. According to the problem, the length of the garden is 2.5 times the width. Therefore, the length of the garden can be expressed as 2.5x units.

Calculation of the Number of Columns Required to Cover the Garden

Next, we need to calculate the number of columns required to cover the garden. According to the problem, the perimeter of the garden is 105 units.

The perimeter of a rectangle can be calculated using the formula: 2(length + width).

Substituting the values, we have: 2(2.5x + x) = 105

Simplifying the equation: 2(3.5x) = 105 7x = 105 x = 105/7 x = 15

Therefore, the width of the garden is 15 units.

To find the length of the garden, we can substitute the value of x into the equation for the length: Length = 2.5x = 2.5 * 15 = 37.5 units.

Now, we have the dimensions of the garden: width = 15 units and length = 37.5 units.

To calculate the number of columns required to cover the garden, we need to find the perimeter of the garden and divide it by the width of each column.

The perimeter of the garden is given by the formula: 2(length + width).

Substituting the values, we have: Perimeter = 2(37.5 + 15) = 2(52.5) = 105 units.

According to the problem, the width of each column is 1.4 times the length and 1.2 times the width of the garden.

Width of each column = 1.4 * 37.5 = 52.5 units. Length of each column = 1.2 * 15 = 18 units.

To calculate the number of columns required, we divide the perimeter of the garden by the width of each column: Number of columns = Perimeter / Width of each column = 105 / 52.5 = 2 columns.

Therefore, 2 columns will be required to cover the garden.

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