Question

№84, Ширина комнаты прямоугольной формы 5 м, а длина 4 м. Сколько потребуется лака для покрытия пола в этой комнате, если на 1 м2 (квадратный) расходуется 250 г лака?

Answer 1

1) 5*4=20 кв.м- площадь комнаты
2) 20*250=5000 (г)-лака потребуется
Ответ:5000 грмм лака

Answer 2

Calculation of Lacquer Required for the Room

To calculate the amount of lacquer required to cover the floor of a rectangular room, we need to find the area of the room and then multiply it by the lacquer consumption rate.

Given: - Width of the room: 5 m - Length of the room: 4 m - Lacquer consumption rate: 250 g per square meter

To find the area of the room, we can use the formula: Area = Length × Width.

Substituting the given values, we have: - Length = 4 m - Width = 5 m

Therefore, the area of the room is: Area = 4 m × 5 m = 20 square meters.

Now, we can calculate the amount of lacquer required by multiplying the area of the room by the lacquer consumption rate: Lacquer Required = Area × Lacquer Consumption Rate.

Substituting the values, we have: - Area = 20 square meters - Lacquer Consumption Rate = 250 g per square meter

Therefore, the amount of lacquer required to cover the floor of the room is: Lacquer Required = 20 square meters × 250 g per square meter = 5000 grams.

So, 5000 grams of lacquer will be required to cover the floor of the room.

Please note that the lacquer consumption rate may vary depending on the type of lacquer and the application method. It is always a good idea to consult the manufacturer's instructions or seek professional advice for accurate calculations.