Question

Фирма решила вырубить лес но экологи запротестовали тогда директор фирмы всех успокоил сказав что в лесу 99% сосен мы будеи рубить только сосны после рубки сосны будут состовлять 96% всех деревьев какую часть леса вырубит фирма

Answer 1

Пусть в лесу х деревьев, тогда сосен 0,99х.
Вырубили сосен у, тогда осталось  сосен 0,99х-у.

0,99х-у = 0,96(х - у)
0,99х-у=0,96х-0,96у
0,99х-0,96х=у-0,96у
0,03х=0,04у
у=0,03:0,04х
у=0,75х
Значит фирма собралась вырубить 0,75*100=75% леса.

Ответ 75% леса собралась вырубить фирма

Answer 2

Calculation of the Area of Forest to be Cut Down

The director of the company claimed that 99% of the trees in the forest are pine trees and that only pine trees will be cut down. After the pine trees are cut down, they will make up 96% of all the trees in the forest. We need to calculate the portion of the forest that the company will cut down.

Let's assume that the total area of the forest is 100 units.

According to the director's claim, initially, 99% of the trees in the forest are pine trees. So, the area covered by pine trees is 99 units.

After the pine trees are cut down, they will make up 96% of all the trees in the forest. Therefore, the remaining 4% of the trees in the forest will be non-pine trees. Since the total area of the forest is 100 units, the area covered by non-pine trees is 4 units.

To calculate the area of the forest that the company will cut down, we subtract the area covered by non-pine trees from the initial area covered by pine trees:

99 units (initial area covered by pine trees) - 4 units (area covered by non-pine trees) = 95 units

Therefore, the company will cut down 95% of the forest.

Please note that the calculation assumes a simplified scenario based on the information provided. The actual area of the forest and the distribution of tree types may vary.