Question

Три колхоза решили общими силами средствами построить электростанцию и расходы распределить между собой пропорционально числам 11,5; 7 и 4. Стоимость здания составляет 80% машин, а расходы на рабочую силу составляли 25% стоимости здания и машин вместе; кроме того,известно, что расходы на рабочую силу были на 7000 рублей меньше, чем на здание. Сколько денег должен был внести каждый колхоз на постройку электростанции?

Answer 1

х-стоимость машин
0,8х-стоимость здания
(х+0,8)*0,25=1,8х*0,25=0,45х-расходы на рабочую силу
0,8х-0,45х=7000
0,35х=7000
х=7000:0,35
х=20 000р-стоимость машин
20 000*0,8=16 000р-стоимость здания
20 000*0,45=9000р-расходы на рабочую силу
20000+16000+9000=45000р-все расходы
11,5+7+4=22,5ч на 45000
45000:22,5=2000р-1 часть
11,5*2000=23000р 1 колхоз
7*2000=14000р-2 колхоз
4*2000=8000р-3 колхоз

Answer 2

Пусть Х-стоимость машин, тогда 0,8Х-стоимость здания, а рабсила=0,25*(Х+0,8Х).
0,25*(Х+0,8Х)+7000=0,8Х
Х=20000-стоимость машин
0,8Х=0,8*20000=16000-стоимость здания
0,25*(20000+16000)=9000-стоимость рабсилы
Все затраты=20000+16000+9000=45000 руб
Даны числа 11,5 ; 7 и 4. Их сумма=22,5.
45000:22,5*11,5=23000 руб-расходы 1 колхоза.
45000:22,5*7=14000 руб-расходы 2 колхоза.
45000:22,5*4=8000 руб-расходы 3 колхоза.

Answer 3

Calculation of Expenses for Building the Power Station

To calculate the amount of money each collective farm (kolhoz) should contribute to the construction of the power station, we need to consider the proportional distribution of expenses based on the given numbers: 11.5, 7, and 4.

Let's break down the problem step by step:

1. Determine the total cost of the building: - The cost of the building is 80% of the cost of the machines. - Therefore, the cost of the building is 80% of the total cost of the machines and the building.

2. Determine the total cost of labor: - The expenses for labor amount to 25% of the total cost of the machines and the building. - Additionally, we know that the expenses for labor are 7000 rubles less than the expenses for the building.

3. Calculate the individual contributions of each kolhoz: - Divide the total cost of the building and machines by the sum of the proportional numbers (11.5 + 7 + 4) to find the cost per unit. - Multiply the cost per unit by each proportional number to find the individual contribution of each kolhoz.

Let's perform the calculations:

1. Total cost of the building: - Let's assume the total cost of the machines and the building is represented by the variable "x". - The cost of the building is 80% of "x". - Therefore, the cost of the building is 0.8 * "x".

2. Total cost of labor: - The expenses for labor are 25% of the total cost of the machines and the building. - The expenses for labor are 7000 rubles less than the expenses for the building. - Let's assume the expenses for labor are represented by the variable "y". - We can set up the following equation: - 0.25 * "x" = "y" + 7000

3. Individual contributions of each kolhoz: - Let's assume the individual contribution of the first kolhoz is represented by the variable "a". - The individual contribution of the first kolhoz can be calculated as follows: - "a" = (0.8 * "x") / (11.5 + 7 + 4) - Similarly, we can calculate the individual contributions of the other two kolhozes.

Now, let's solve the equations to find the values:

1. Total cost of the building: - We don't have enough information to determine the exact value of the total cost of the machines and the building.

2. Total cost of labor: - We don't have enough information to determine the exact value of the expenses for labor.

3. Individual contributions of each kolhoz: - We don't have enough information to determine the exact values of the individual contributions of each kolhoz.

Unfortunately, without the specific values for the total cost of the machines and the building, as well as the expenses for labor, we cannot calculate the exact amount of money each kolhoz should contribute to the construction of the power station.

Please provide the missing information, and I will be happy to help you with the calculations.