Question

Школьники собрали 456 кг мукулатуры. из неё при переработке получилась писчая бумага. масса которой составляет 60% массы мукулатуры.сколько тетрадей получится из этой мукулатуры если масса одной тетради 30 грамм???

Answer 1

456*60/100=273,6(кг)=273600(г)-писчая бумага

273600/30=9120(тет)-получится тетрадей из макулатуры

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Answer 2

456-100%
Х кг-60%
Х=456*60:100
Х=273,6 кг писчая бумага
273,6х1000=273600 гр
273600:30=9120 тетрадей

Answer 3

Calculation of the Number of Notebooks

To calculate the number of notebooks that can be produced from the recycled paper, we need to determine the total mass of the recycled paper and then divide it by the mass of one notebook.

Given: - The students collected 456 kg of recyclable material. - From the recycling process, paper was produced, which constitutes 60% of the mass of the recyclable material. - The mass of one notebook is 30 grams.

To find the mass of the recycled paper, we need to calculate 60% of 456 kg: - Mass of recycled paper = 60% of 456 kg = 0.6 * 456 kg = 273.6 kg.

Now, let's calculate the number of notebooks that can be produced from the recycled paper: - Number of notebooks = Mass of recycled paper / Mass of one notebook - Number of notebooks = 273.6 kg / 0.03 kg (since 1 kg = 1000 grams and 30 grams = 0.03 kg) - Number of notebooks = 9120 notebooks.

Therefore, from the given amount of recyclable material, 456 kg, the students can produce approximately 9120 notebooks, assuming each notebook weighs 30 grams.

Please note that this calculation assumes that all the recycled paper can be used to produce notebooks without any waste or loss during the manufacturing process.