Question

Длина прямоугольного поля 500 м, а ширина на 220 м меньше. Седьмую часть этого поля занимает овес, одну вторую часть - пшеница, а остальную площадь - рожь. Какую площадь занимает рожь?

Answer 1

500-220=280м ширина поля
500х280=140 000 м2 площадь поля
140 000:7х1=20 000 м2 занято овсом
140 000:2х1=70 000 м2 занято пшеницей
140 000-20 000-70 000=50 000 м2 занимает рожь
50 000:10 000=5 га занимает рожь

Answer 2

Problem Analysis

We are given the length and width of a rectangular field, as well as the proportions of the field occupied by oats, wheat, and rye. We need to determine the area occupied by rye.

Given Information

- Length of the rectangular field: 500 m - Width of the rectangular field: 220 m - Proportions of the field: - Oats: 1/7 of the field - Wheat: 1/2 of the field - Rye: remaining area

Calculating the Area of the Field

To calculate the area of the field, we can use the formula: Area = Length x Width.

Given that the length of the field is 500 m and the width is 220 m, we can calculate the area as follows:

Area = 500 m x 220 m

Let's calculate the area of the field.

Calculation

Area = 500 m x 220 m = 110,000 m²

Calculating the Area of Oats and Wheat

We are given that oats occupy 1/7 of the field and wheat occupies 1/2 of the field. To calculate the areas of oats and wheat, we can multiply the area of the field by their respective proportions.

Let's calculate the areas of oats and wheat.

Calculation

Area of Oats = (1/7) x 110,000 m²

Area of Wheat = (1/2) x 110,000 m²

Calculating the Area of Rye

To calculate the area of rye, we need to subtract the areas of oats and wheat from the total area of the field.

Area of Rye = Total Area - Area of Oats - Area of Wheat

Let's calculate the area of rye.

Calculation

Area of Rye = 110,000 m² - Area of Oats - Area of Wheat

Final Calculation

Substituting the calculated values, we can find the area of rye.

Area of Rye = 110,000 m² - (1/7) x 110,000 m² - (1/2) x 110,000 m²

Calculation

Area of Rye = 110,000 m² - (1/7) x 110,000 m² - (1/2) x 110,000 m²

Area of Rye = 110,000 m² - 15,714.29 m² - 55,000 m²

Area of Rye ≈ 39,285.71 m²

Answer

The rye occupies approximately 39,285.71 square meters of the rectangular field.

Note: The calculations provided are based on the given information and assumptions made.