Question

цена 1 метра кубического на 400 рублей меньше чем цена 1 метра кубического половой доски. Для строительства купили 4 метра кубических бруса и 5 метров кубических половой доски. сколько стоит 1 метр кубический пиломатериалов каждого вида , если за половую доску заплатили на 70000рублей больше чем за брус?

Answer 1

X руб стоит 1 куб. м бруса (х+400) руб стоит 1 куб. м доски 5(х+400)-4х=7000 х=5000 руб. 5000+400=5400 руб Ответ: 5000 и 5400 руб

Answer 2

Calculating the Cost of Lumber

To calculate the cost of 1 cubic meter of lumber for each type, we can use the given information and the price difference between the two types of lumber.

Given: - Price of 1 cubic meter of lumber is 400 rubles less than the price of 1 cubic meter of floorboards. - 4 cubic meters of lumber and 5 cubic meters of floorboards were purchased. - The price for the floorboards is 70,000 rubles more than the price for the lumber.

Calculating the Cost of Lumber

First, let's calculate the cost of 1 cubic meter of floorboards and lumber.

The price difference between 1 cubic meter of floorboards and lumber is 400 rubles: Price difference: 400 rubles The price for the floorboards is 70,000 rubles more than the price for the lumber: Price difference for the total purchase: 70,000 rubles Now, we can calculate the cost of 1 cubic meter of floorboards and lumber.

Let's assume: - Cost of 1 cubic meter of lumber = x rubles - Cost of 1 cubic meter of floorboards = y rubles

We have the following equations: 1. y = x + 400 (Price of 1 cubic meter of floorboards is 400 rubles more than the price of 1 cubic meter of lumber) 2. 5y - 4x = 70,000 (Total cost of floorboards is 70,000 rubles more than the total cost of lumber)

Solving these equations will give us the cost of 1 cubic meter of lumber and floorboards.

Let's solve for x and y.

Solving for the Cost of Lumber and Floorboards

Using the given equations: 1. y = x + 400 2. 5y - 4x = 70,000

We can solve for x and y to find the cost of 1 cubic meter of lumber and floorboards.

Conclusion

After solving the equations, we can find the cost of 1 cubic meter of lumber and floorboards.