Question

Собранные лекарственные травы при сушке теряют 38℅ своей массы. сколько килограммов лечебных трав надо собрать, чтобы получить 12,4кг сухих??

Answer 1

Составим пропорцию
12,4 кг - 62% (100-38)
Х. - 100%
Х = 12.4×100÷62
Х= 20 (кг)- необходимо собрать

Answer 2

12,4 делим на 38, умножаем на сто

Answer 3

Calculation of the Amount of Medicinal Herbs Needed

To calculate the amount of medicinal herbs needed to obtain 12.4 kg of dried herbs, we need to take into account that the herbs lose 38% of their mass during the drying process.

Let's assume that x represents the initial mass of the medicinal herbs that need to be collected. After drying, the mass of the herbs will be 12.4 kg. According to the given information, the herbs lose 38% of their mass during drying. This means that after drying, the mass of the herbs will be 62% of the initial mass.

We can set up the following equation to solve for x:

0.62x = 12.4

To find the value of x, we can divide both sides of the equation by 0.62:

x = 12.4 / 0.62

Now, let's calculate the value of x:

x = 20 kg

Therefore, to obtain 12.4 kg of dried medicinal herbs, you would need to collect 20 kg of fresh herbs.