Question

Бульдозер разровнял площадь прямоугольника формы длиной 20 метров и шириной 15 метров.Это две третих его древнего здания.Сколько квадратных метров поверхности ему осталось сегодня разровнять?

Answer 1

1) 20*15 = 300

2) 300*1/3 = 100

Ответ: осталось разравнять 100 м²

Answer 2

 длина-20м

ширина-15м

это 2/3 всего здания

Сколько осталось разровнять-? 

 

1)20х15=300м2

2)300:3=100 м2-это 1 часть

3)2х100=200 м2-это 2/3 части

4)300-200=100м2-осталось разровнять 

Answer 3

Calculation of Remaining Surface Area to be Leveled

To calculate the remaining surface area that needs to be leveled, we first need to determine the total surface area of the rectangular area that was leveled by the bulldozer.

The rectangular area has a length of 20 meters and a width of 15 meters. The formula to calculate the surface area of a rectangle is:

Surface Area = Length x Width

Substituting the given values, we have:

Surface Area = 20 meters x 15 meters

Calculating the surface area, we get:

Surface Area = 300 square meters

Therefore, the bulldozer has already leveled a rectangular area with a surface area of 300 square meters.

To find the remaining surface area that needs to be leveled, we subtract the surface area that has already been leveled from the total surface area of the rectangular area.

Let's denote the remaining surface area as R.

R = Total Surface Area - Leveled Surface Area

Substituting the values, we have:

R = (20 meters x 15 meters) - 300 square meters

Calculating the remaining surface area, we get:

R = 300 square meters - 300 square meters

R = 0 square meters

Therefore, the bulldozer has already leveled the entire rectangular area, and there is no remaining surface area to be leveled.

Please note that the information provided is based on the assumption that the bulldozer has completely leveled the rectangular area. If there are any additional factors or conditions that need to be considered, please provide more details for a more accurate response.