Question

У Андрея на даче есть металлическая емкость в виде прямоугольного параллелепипеда стоящий горизонтально найти объем воды если длина 5 метров Ширина 2 метра а высота 1 метра с половиной. сколько краски понадобится для покрытия емкости с наружи если один метр квадратный составляет 800 грамм краски. если в одной банки краски 3 кг она весит 800 рублей

Answer 1

5* 2 * 1.5 = 15м³  - объем емкости
1м ³ = 10 дм * 10 дм * 10 дм = 1000 дм³
1дм³ = 1 литр
15 м³ * 1000 = 15 000 литров  = 15 т - объем воды
5 * 1.5 * 2 + 2 * 1.5 * 2 = 15 + 6 = 21 м² площадь поверхности ,которую надо покрасить.
21 * 800 = 16800 г = 16,.8 кг  краски необходимо
16.8 \ 3 = 5.6 банки = 6 банок понадобится ( ответ приблизительный)
800 * 6 = 4800 рублей  - стоят 6 банок краски

Answer 2

Calculating the Volume of Water in the Metal Container

To calculate the volume of water in the metal container, we need to multiply the length, width, and height of the container. Given that the length is 5 meters, the width is 2 meters, and the height is 1.5 meters, we can calculate the volume as follows:

Volume = Length x Width x Height

Volume = 5 meters x 2 meters x 1.5 meters

Volume = 15 cubic meters

Therefore, the volume of water in the metal container is 15 cubic meters.

Calculating the Amount of Paint Needed to Cover the Exterior of the Container

To calculate the amount of paint needed to cover the exterior of the container, we need to find the surface area of the container and then convert it to the amount of paint required.

The surface area of a rectangular prism (parallelepiped) can be calculated using the formula:

Surface Area = 2lw + 2lh + 2wh

Given that the length is 5 meters, the width is 2 meters, and the height is 1.5 meters, we can calculate the surface area as follows:

Surface Area = 2(5m x 2m) + 2(5m x 1.5m) + 2(2m x 1.5m)

Surface Area = 20 square meters + 15 square meters + 6 square meters

Surface Area = 41 square meters

Now, we need to convert the surface area to the amount of paint required. We are given that 1 square meter requires 800 grams of paint. Therefore, we can calculate the amount of paint needed as follows:

Amount of Paint = Surface Area x Paint Density

Amount of Paint = 41 square meters x 800 grams/square meter

Amount of Paint = 32,800 grams

Since 1 kilogram (kg) is equal to 1000 grams, we can convert the amount of paint to kilograms:

Amount of Paint = 32,800 grams / 1000 grams/kg

Amount of Paint = 32.8 kilograms

Therefore, approximately 32.8 kilograms of paint will be needed to cover the exterior of the metal container.