Question

Решите ещё эту задачу: На покраску двух стен дома израсходовали 7.26 кг краски. Сколько килограммов краски было израсходовано на каждую стену если площадь одной из них на 6 м(2) больше, чем площадь другой, а на каждый квадратный метр уходит 0,22 кг краски?

Answer 1

0,22*6=1,32 кг израсходовали на 6 кв. м
7,26-1,32=5,945,
94/2=2,97 кг краски израсходовали на 1 стену
2,97+1,32=4,29 кг краски израсходовали на вторую стену

Answer 2

Problem Analysis

To solve this problem, we need to find the amount of paint used for each wall. We are given that the total amount of paint used for both walls is 7.26 kg, and we know that each square meter requires 0.22 kg of paint. Additionally, one wall is 6 square meters larger than the other.

Solution

Let's assume the area of the smaller wall is x square meters. Then the area of the larger wall is x + 6 square meters.

The total amount of paint used for both walls is 7.26 kg. Since each square meter requires 0.22 kg of paint, we can set up the following equation:

0.22 * (x + x + 6) = 7.26

Simplifying the equation:

0.22 * (2x + 6) = 7.26 0.44x + 1.32 = 7.26 0.44x = 7.26 - 1.32 0.44x = 5.94 x = 5.94 / 0.44 x ≈ 13.5

Therefore, the area of the smaller wall is approximately 13.5 square meters, and the area of the larger wall is approximately 13.5 + 6 = 19.5 square meters.

To find the amount of paint used for each wall, we can multiply the area of each wall by the amount of paint required per square meter:

For the smaller wall: Amount of paint = 13.5 * 0.22 ≈ 2.97 kg

For the larger wall: Amount of paint = 19.5 * 0.22 ≈ 4.29 kg

Therefore, approximately 2.97 kg of paint was used for the smaller wall, and approximately 4.29 kg of paint was used for the larger wall.

Answer

Approximately 2.97 kg of paint was used for the smaller wall, and approximately 4.29 kg of paint was used for the larger wall.