Question

Решить задачу: Улицу длинной 672м и шириной 13м покрыли асфальтом, расходуя на каждый квадратный метр 39кг асфальта. Сколько асфальта потребовалось? Выразите результат в тоннах и кг.

Answer 1

672*13=8736 м2 вся S которую покрыли асфальтом
 8736*39 = 340704 кг =340 т 704 кг понадобится асфальта

Answer 2

Problem Analysis

To solve this problem, we need to find the total amount of asphalt required to cover a street with dimensions 672m by 13m. The amount of asphalt used per square meter is given as 39kg. We need to express the result in both metric tons and kilograms.

Calculation

To find the total amount of asphalt required, we need to calculate the area of the street and then multiply it by the asphalt usage per square meter.

The area of the street can be calculated by multiplying its length by its width: Area = Length × Width

Let's calculate the area of the street: Area = 672m × 13m

To find the total amount of asphalt required, we multiply the area by the asphalt usage per square meter: Total Asphalt = Area × Asphalt Usage

Now, let's substitute the values into the formula and calculate the result.

Calculation Result

Area = 672m × 13m = 8736 square meters

Total Asphalt = 8736 square meters × 39kg/square meter

To express the result in metric tons, we divide the total amount of asphalt by 1000: Total Asphalt in metric tons = Total Asphalt / 1000

To express the result in kilograms, we multiply the total amount of asphalt by 1000: Total Asphalt in kilograms = Total Asphalt × 1000

Let's calculate the result:

Total Asphalt = 8736 square meters × 39kg/square meter = 340,704kg

Total Asphalt in metric tons = 340,704kg / 1000 = 340.704 metric tons

Total Asphalt in kilograms = 340,704kg × 1000 = 340,704,000kg

Answer

The total amount of asphalt required to cover the street is 340.704 metric tons or 340,704,000 kilograms.

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