Question

Трактористы вспахали поле за три дня.В первый день они вспахали 4/7 поля, во второй 40% поля, а в третий день-остальные 48 га.Найдите площадь поля.даю 53 баллаС ВОПРОСАМИ

Answer 1

40% = 0,4 = 4/10 = 2/5 - поля было вспахано во второй день.
4/7 + 2/5 = 20/35 + 14/35 = 34/35 - поля было вспахано за первый и второй дни.
1 - 34/35 = 35/35 - 34/35 = 1/35 - поля было вспахано за третий день, что составляет 48 га.
48 : 1 * 35 = 1680 (га) - площадь всего поля.
Ответ: 1680 га.

Answer 2

Calculation of the Field Area

To find the area of the field, we need to calculate the area plowed on each day and then sum them up.

1. On the first day, the tractorists plowed 4/7 of the field. 2. On the second day, they plowed 40% of the field. 3. On the third day, they plowed the remaining 48 hectares.

Let's calculate the area plowed on each day:

1. First day: 4/7 of the field. 2. Second day: 40% of the field. 3. Third day: 48 hectares.

To find the total area of the field, we need to add up the areas plowed on each day.

Calculation:

1. First day: 4/7 of the field. 2. Second day: 40% of the field. 3. Third day: 48 hectares.

To calculate the total area, we can use the following equation:

Total Area = Area on the First Day + Area on the Second Day + Area on the Third Day

Let's calculate the total area:

1. Area on the First Day: 4/7 of the field. 2. Area on the Second Day: 40% of the field. 3. Area on the Third Day: 48 hectares.

Now, let's substitute the values and calculate the total area:

Total Area = (4/7) * Field Area + (40/100) * Field Area + 48 hectares

Simplifying the equation:

Total Area = (4/7 + 40/100) * Field Area + 48 hectares

To solve this equation, we need to find a common denominator for the fractions:

Total Area = (160/700 + 280/700) * Field Area + 48 hectares

Simplifying further:

Total Area = (440/700) * Field Area + 48 hectares

Now, let's solve for the Field Area:

Field Area = (Total Area - 48 hectares) / (440/700)

To find the Field Area, we need to know the value of the Total Area.

Please provide the value of the Total Area, and I will calculate the Field Area for you.