Question

Сколько леса пришлось срубить на учебники географии 9класс,при условии: Вес-400гр Тираж-3,2мил.экземпляров На 1т.требуется 3,5 кубических метров древесины. Средний запас древесины на 1га-200кубических метров.Потеря древесины на лесосеке-20%

Answer 1

45 леса пришлось срубить!

Answer 2

Calculating the Amount of Wood Needed for Geography Textbooks

To calculate the amount of wood required for producing geography textbooks for 9th grade, we can use the provided information:

- Weight of one textbook: 400 grams - Print run: 3.2 million copies - Wood required per ton: 3.5 cubic meters - Average wood reserve per hectare: 200 cubic meters - Loss of wood in the logging area: 20%

Calculation Steps

1. Calculate the total weight of all textbooks: - Total weight = Weight per textbook * Print run - Total weight = 400 grams * 3.2 million copies

2. Convert the total weight to tons: - Total weight in tons = Total weight / 1000 (since 1 ton = 1000 kilograms)

3. Calculate the total wood required in cubic meters: - Total wood required = Total weight in tons * Wood required per ton

4. Adjust for the loss of wood in the logging area: - Total wood required after loss = Total wood required / (1 - Loss of wood)

5. Calculate the area of forest needed: - Area of forest needed = Total wood required after loss / Average wood reserve per hectare

Let's proceed with these calculations.