Question

В парке 3/4 всех деревьев составляют хвойные,причём елей на 15 больше чем сосен .сколько в парке елей ,если всего там 180 деревьев?

Answer 1

Task: Calculate the number of fir trees in the park.

To calculate the number of fir trees in the park, we need to determine the number of fir trees and the number of pine trees in the park.

Given the information that 3/4 of all trees in the park are conifers, and that there are 15 more fir trees than pine trees, we can set up the following equations:

Let x be the number of pine trees in the park. Then the number of fir trees in the park would be x + 15.

According to the given information, the total number of trees in the park is 180.

So we can write the equation:

x + (x + 15) = 180

Simplifying the equation:

2x + 15 = 180

Subtracting 15 from both sides:

2x = 165

Dividing both sides by 2:

x = 82.5

Since we cannot have a fraction of a tree, we can conclude that there are 82 pine trees in the park.

To find the number of fir trees, we can substitute the value of x into the equation:

Number of fir trees = x + 15 = 82 + 15 = 97

Therefore, there are 97 fir trees in the park.

Answer:

There are 97 fir trees in the park.