Question

Внимание:Ремонт в комнате ветерана войны ! ЗАЛ.Длина комнаты 5метров ,ширина 4 метра. Высота 2м 50см.Сколько потребуется рулонов обоев для оклейки комнаты,если длина одного рулона 10 метров,а ширина 1м? На пол стелим линолеум . Сколько нужно купить линолеума шириной 2 м 50см? Красим потолок.Сколько при этом нужно купить краски , если на 1 (м2) требуется 175г. В банке 3 кг 500г?

Answer 1

обои

(5+4)2=18м периметр комнаты

18х2.5=45м²-площадь стен

10 х 1=10м² -площадь 1-го рулона обоев

45;10=4,5 рулона

линолеум

5 х 4=20м² площадь пола

20 : 2,5=8м линолеума

потолок

площадь потолка равна площади пола 20м²

20х175=3 500г=3,5кг- расход краски на потолок

и количество краски в банке 3,5кг, значит достаточно 1-й банки краски

Answer 2

1)5*4*2ю5=62.5метра
2)62.5:10=7 рулонов обоев
3)5*4=20
4)20:2.5=8 линолиума
5)20*175=3500гр=1 банка

Answer 3

Calculating the number of wallpaper rolls needed

To calculate the number of wallpaper rolls needed to cover the room, we need to determine the total area of the walls and divide it by the area covered by one roll of wallpaper.

Given: - Length of the room: 5 meters - Width of the room: 4 meters - Height of the room: 2 meters 50 centimeters

To calculate the area of the walls, we need to find the perimeter of the room and multiply it by the height. The perimeter can be calculated by adding twice the length and twice the width of the room.

Perimeter of the room = (2 * length) + (2 * width) = (2 * 5) + (2 * 4) = 10 + 8 = 18 meters

Area of the walls = Perimeter * Height = 18 * 2.5 = 45 square meters

Now, let's calculate the area covered by one roll of wallpaper. Given that the length of one roll is 10 meters and the width is 1 meter, the area covered by one roll is:

Area covered by one roll = Length * Width = 10 * 1 = 10 square meters

To find the number of rolls needed, we divide the total area of the walls by the area covered by one roll:

Number of rolls needed = Area of the walls / Area covered by one roll = 45 / 10 = 4.5 rolls

Since we cannot purchase a fraction of a roll, we need to round up to the nearest whole number. Therefore, we would need to buy 5 rolls of wallpaper to cover the room.

Calculating the amount of linoleum needed

To calculate the amount of linoleum needed to cover the floor, we need to determine the area of the floor and account for the width of the linoleum.

Given: - Width of the linoleum: 2 meters 50 centimeters

The area of the floor can be calculated by multiplying the length and width of the room:

Area of the floor = Length * Width = 5 * 4 = 20 square meters

To find the amount of linoleum needed, we divide the area of the floor by the width of the linoleum:

Amount of linoleum needed = Area of the floor / Width of the linoleum = 20 / 2.5 = 8 square meters

Therefore, we would need to buy 8 square meters of linoleum to cover the floor.

Calculating the amount of paint needed for the ceiling

To calculate the amount of paint needed to paint the ceiling, we need to determine the area of the ceiling and the amount of paint required per square meter.

Given: - Amount of paint required per square meter: 175 grams - Amount of paint in one can: 3 kilograms 500 grams

The area of the ceiling can be calculated by multiplying the length and width of the room:

Area of the ceiling = Length * Width = 5 * 4 = 20 square meters

To find the amount of paint needed, we multiply the area of the ceiling by the amount of paint required per square meter:

Amount of paint needed = Area of the ceiling * Amount of paint required per square meter = 20 * 175 = 3500 grams

Since the amount of paint is given in kilograms, we need to convert grams to kilograms:

Amount of paint needed = 3500 grams / 1000 = 3.5 kilograms

Therefore, we would need to buy 3 kilograms 500 grams of paint to paint the ceiling.

Please note that these calculations are approximate and may vary depending on factors such as the efficiency of the wallpaper installation, linoleum cutting, and paint application.