Question

Ширина комнаты равна 5 м,а периметр пола-26 м.Чтобы покрасить 10 кв/м пола,нужно 2 кг краски.Сколько краски потребуется,чтобы покрасить весь пол?

Answer 1

26-(5+5)=16( см) две длины
16:2=8( см) длина
5*8=40( см.кв) площадь пола
40:10=4
2*4=8( кг) краски
Ответ: 8 кг.

Answer 2

Calculation of Paint Required to Cover the Entire Floor

To calculate the amount of paint required to cover the entire floor, we need to find the area of the floor first. The width of the room is given as 5 meters, and the perimeter of the floor is given as 26 meters.

To find the length of the room, we can use the formula for the perimeter of a rectangle, which is given by:

Perimeter = 2 * (Length + Width)

In this case, the width is 5 meters, and the perimeter is 26 meters. Plugging in these values into the formula, we can solve for the length:

26 = 2 * (Length + 5)

Dividing both sides of the equation by 2, we get:

13 = Length + 5

Subtracting 5 from both sides, we find:

Length = 8 meters

Now that we have the length and width of the room, we can calculate the area of the floor:

Area = Length * Width

Area = 8 meters * 5 meters = 40 square meters

According to the given information, 2 kilograms of paint are required to cover 10 square meters of the floor. Therefore, to find the amount of paint required to cover the entire floor, we can set up a proportion:

2 kilograms / 10 square meters = X kilograms / 40 square meters

Cross-multiplying, we get:

10 * X = 2 * 40

Simplifying, we find:

10X = 80

Dividing both sides by 10, we get:

X = 8

Therefore, 8 kilograms of paint will be required to cover the entire floor.