Question

Помогите решить!! Березы составляют 2/15 количества деревьев растущих в парке, клёны-45% остатка, а дубы-остальные 77 деревьев. Сколько всего деревьев растёт в парке?

Answer 1

Ответ:

161 деревьев.

Пошаговое объяснение:

1) 100%-45%=55%.

55%=0,55.

2) 77:0,55=140.

3) 1-2/15=13/15.

4) 140:13/15=161.

Answer 2

Calculation of the Total Number of Trees in the Park

To find the total number of trees in the park, we need to calculate the number of birch trees, maple trees, and oak trees based on the given information.

Let's assume that the total number of trees in the park is represented by the variable "T".

According to the information provided: - Birch trees make up 2/15 of the total number of trees in the park. - Maple trees make up 45% of the remaining trees after accounting for the birch trees. - Oak trees make up the remaining 77 trees.

To calculate the total number of trees in the park, we can set up the following equation:

(2/15)T + (45/100)(T - (2/15)T) + 77 = T

Let's solve this equation to find the value of T.

(2/15)T + (45/100)(T - (2/15)T) + 77 = T

Simplifying the equation:

(2/15)T + (45/100)(13/15)T + 77 = T

(2/15)T + (585/1500)T + 77 = T

Multiplying through by 1500 to eliminate the denominators:

200T + 585T + 115500 = 1500T

Combining like terms:

785T + 115500 = 1500T

Subtracting 785T from both sides:

115500 = 715T

Dividing both sides by 715:

T ≈ 161.68

Therefore, the approximate total number of trees in the park is 161.68.

Please note that since the number of trees cannot be a fraction, we can round the result to the nearest whole number. Thus, the total number of trees in the park is approximately 162.