Question

50% поля засеяли пшеницей, 15% -рожью, а остальное овсом. Какую площадь засеяли пшеницей и рожью, если овсом засеяли 70 га

Answer 1

100га пшеница 30га овес т.к 100-50-15=35% - овес
35%- 75га
1%- 2га (т.к. 74/35=2)
50%=100га(пшено)
15%=30га(рожь)

Answer 2

Calculating the Area Seeded with Wheat and Rye

To calculate the area seeded with wheat and rye, we can use the given percentages and the total area seeded with oats.

Given: - 50% of the field is seeded with wheat - 15% of the field is seeded with rye - The rest is seeded with oats, which is 70 hectares

Calculations:

1. Calculate the area seeded with wheat: - 50% of the total field is seeded with wheat - 50% of the total field = 0.5 * Total field area - Area seeded with wheat = 0.5 * Total field area

2. Calculate the area seeded with rye: - 15% of the total field is seeded with rye - 15% of the total field = 0.15 * Total field area - Area seeded with rye = 0.15 * Total field area

3. Calculate the area seeded with wheat and rye combined: - Area seeded with wheat and rye = Area seeded with wheat + Area seeded with rye

Results:

1. Area Seeded with Wheat: - Area seeded with wheat = 0.5 * Total field area - Area seeded with wheat = 0.5 * 70 hectares - Area seeded with wheat = 35 hectares

2. Area Seeded with Rye: - Area seeded with rye = 0.15 * Total field area - Area seeded with rye = 0.15 * 70 hectares - Area seeded with rye = 10.5 hectares

3. Total Area Seeded with Wheat and Rye: - Area seeded with wheat and rye = Area seeded with wheat + Area seeded with rye - Area seeded with wheat and rye = 35 hectares + 10.5 hectares - Area seeded with wheat and rye = 45.5 hectares

Therefore, the area seeded with wheat and rye combined is 45.5 hectares.

Answer 3

Calculating the Area Seeded with Wheat and Rye

To calculate the area seeded with wheat and rye, we can use the given percentages and the information that the remaining area was seeded with oats.

Given: - 50% of the field was seeded with wheat - 15% of the field was seeded with rye - The remaining area was seeded with oats, which is 70 hectares

Solution:

Let's denote the total area as T.

The area seeded with wheat (50% of T) can be represented as 0.5T.

The area seeded with rye (15% of T) can be represented as 0.15T.

The area seeded with oats is 70 hectares.

We can use the fact that the sum of the areas seeded with wheat, rye, and oats equals the total area: 0.5T + 0.15T + 70 = T

Solving for T: 0.5T + 0.15T + 70 = T 0.65T + 70 = T 70 = T - 0.65T 70 = 0.35T T = 70 / 0.35 T = 200

Now we can calculate the area seeded with wheat and rye: - Area seeded with wheat = 0.5 * 200 = 100 hectares - Area seeded with rye = 0.15 * 200 = 30 hectares

Therefore, the area seeded with wheat is 100 hectares and the area seeded with rye is 30 hectares.

Answer:

The area seeded with wheat is 100 hectares and the area seeded with rye is 30 hectares.