Question

Решите задачку!! В комнате ,длина которой 8 м, а ширина на 2 м меньше длины, надо покрасить пол. Сколько для этого понадобится краски,если расходовать по 150 г на 1-ин м2?

Answer 1

8-2=6 - это ширина комнаты.  8 умножить на 6= 48 м2 - это площадь комнаты. 48 умножить на 150 = 7200 грамм краски понадобится

Answer 2

1) 8 - 2 = 6 ( м ) ширина
2) 8 • 6 = 48 ( м2 ) площадь
3) 150 • 48 = 7200 ( г )
Ответ 7200 г ( или 7 кг 200 г )

Answer 3

Problem Analysis

To solve this problem, we need to find the area of the room and then calculate the amount of paint needed based on the given paint consumption rate.

Given Information

- Length of the room: 8 meters - Width of the room: 2 meters less than the length - Paint consumption rate: 150 grams per square meter

Calculating the Area of the Room

To find the area of the room, we can use the formula for the area of a rectangle: Area = Length x Width.

Given that the length of the room is 8 meters and the width is 2 meters less than the length, we can calculate the width as follows:

Width = Length - 2

Substituting the value of the length into the equation, we get:

Width = 8 - 2 = 6 meters

Now, we can calculate the area of the room:

Area = Length x Width = 8 x 6 = 48 square meters

Calculating the Amount of Paint Needed

To calculate the amount of paint needed, we need to multiply the area of the room by the paint consumption rate.

Given that the paint consumption rate is 150 grams per square meter and the area of the room is 48 square meters, we can calculate the amount of paint needed as follows:

Amount of Paint = Area x Paint Consumption Rate = 48 x 150 = 7200 grams

Therefore, 7200 grams of paint will be needed to paint the floor of the room.

Conclusion

To paint the floor of a room with a length of 8 meters and a width 2 meters less than the length, you will need approximately 7200 grams of paint, assuming a paint consumption rate of 150 grams per square meter.

Please note that the calculations provided are based on the given information and assumptions.