Question

З площі 40 га було зібрано врожай насіння соняшнику по 22 1/5 ц з кожного гектара .7/8 від зібраноїкількості насіння переробили на олію.Скільки отримали олії становить 1/3 від маси насіння? Пж помогите!!!!!

Answer 1

To find the amount of oil obtained from the harvested sunflower seeds, we need to follow these steps:

1. Calculate the total amount of sunflower seeds harvested: - The area of land is given as 40 hectares. - The yield per hectare is given as 22 1/5 centners (1 centner = 100 kilograms). - To find the total yield, we multiply the yield per hectare by the area: 40 hectares * 22 1/5 centners/hectare.

2. Calculate the amount of seeds processed into oil: - It is mentioned that 7/8 of the harvested seeds were processed into oil. - To find the amount of seeds processed, we multiply the total yield by 7/8.

3. Calculate the amount of oil obtained: - It is stated that the amount of oil obtained is 1/3 of the weight of the seeds processed. - To find the amount of oil, we multiply the weight of the seeds processed by 1/3.

Let's calculate the values step by step:

Step 1: Calculate the total amount of sunflower seeds harvested:

- Area of land: 40 hectares - Yield per hectare: 22 1/5 centners

To find the total yield, we multiply the yield per hectare by the area:

Total yield = 40 hectares * 22 1/5 centners/hectare

Step 2: Calculate the amount of seeds processed into oil:

- Percentage of seeds processed into oil: 7/8

To find the amount of seeds processed, we multiply the total yield by 7/8:

Amount of seeds processed = Total yield * 7/8

Step 3: Calculate the amount of oil obtained:

- Percentage of oil obtained: 1/3

To find the amount of oil, we multiply the weight of the seeds processed by 1/3:

Amount of oil obtained = Amount of seeds processed * 1/3

Now, let's calculate the values:

Step 1:

- Area of land: 40 hectares - Yield per hectare: 22 1/5 centners

Total yield = 40 hectares * 22 1/5 centners/hectare

Step 2:

- Percentage of seeds processed into oil: 7/8

Amount of seeds processed = Total yield * 7/8

Step 3:

- Percentage of oil obtained: 1/3

Amount of oil obtained = Amount of seeds processed * 1/3

Now, let's calculate the values:

Step 1:

- Area of land: 40 hectares - Yield per hectare: 22 1/5 centners

Total yield = 40 hectares * 22 1/5 centners/hectare

To calculate the total yield, we first need to convert the mixed number (22 1/5) to an improper fraction. The improper fraction equivalent of 22 1/5 is (22 * 5 + 1) / 5 = 111/5.

Total yield = 40 hectares * 111/5 centners/hectare

To multiply fractions, we multiply the numerators and denominators separately:

Total yield = (40 * 111) / (5 * 1) centners

Total yield = 4440 / 5 centners

Total yield = 888 centners

Step 2:

- Percentage of seeds processed into oil: 7/8

Amount of seeds processed = Total yield * 7/8

To multiply a fraction by a whole number, we multiply the numerator by the whole number:

Amount of seeds processed = (888 centners * 7) / 8

Amount of seeds processed = 6216 / 8 centners

Amount of seeds processed = 777 centners

Step 3:

- Percentage of oil obtained: 1/3

Amount of oil obtained = Amount of seeds processed * 1/3

Amount of oil obtained = (777 centners * 1) / 3

Amount of oil obtained = 777 / 3 centners

To simplify the fraction, we divide the numerator by the denominator:

Amount of oil obtained = 259 centners

Therefore, the amount of oil obtained from the harvested sunflower seeds is 259 centners.

Please note that the calculations provided are based on the information given in the question.