Question

Улицу длиной 1 км 250 м ,шириной 24 м. покрыли асфальтом.На каждый 100 квадратных метров расходовали 3т .900кг асфальта .Сколько всего тонн асфальта израсходовали?

Answer 1

1км 250м = 1250м
1)Какая площадь улицы?
1250*24=30000(м2)
2)Сколько раз в 30000 м2 вмещается 100 м2?
30000:100=300 (раз)
3)Сколько израсходовали асфальта?
3900*300=1170000 (кг) = 1170 (т)
Ответ:1170 т всего израсходовали асфальта.

Answer 2

Calculation of Asphalt Consumption

To calculate the total amount of asphalt used to cover a street that is 1 km 250 m long and 24 m wide, we need to determine the area of the street and then calculate the asphalt consumption per 100 square meters.

The area of the street can be calculated by multiplying its length by its width:

Area of the street = Length × Width

Given that the length of the street is 1 km 250 m (or 1,250 m) and the width is 24 m, we can substitute these values into the formula:

Area of the street = 1,250 m × 24 m

Calculating this gives us the total area of the street.

Now, let's calculate the asphalt consumption per 100 square meters. According to the information provided, for every 100 square meters, 3.9 tons of asphalt are used.

To find the total amount of asphalt used, we need to divide the total area of the street by 100 and then multiply it by the asphalt consumption per 100 square meters:

Total asphalt consumption = (Area of the street ÷ 100) × Asphalt consumption per 100 square meters

Let's calculate the values:

Area of the street = 1,250 m × 24 m = 30,000 square meters

Total asphalt consumption = (30,000 square meters ÷ 100) × 3.9 tons

Using these calculations, we can determine the total amount of asphalt used to cover the street.