Question

Вдоль двух улиц посадили деревья для озеленения.Количество деревьев на первой улице 1.4 раза больше,чем кол-во деревьев на второй.Когда с первой улице пересадили 13 деревьев на вторую,то кол-во деревьев на обоих улицах стало поровну.Сколько деревьев было посажено на каждой улице первоначально?

Answer 1

1,4x-13=x+13
1,4x-x=13+13
0,4x=26
x=26:0,4
x=65 деревьев было на второй улице первоначально
65*1,4=91 дерево было на первой улице первоначально

Answer 2

Problem Analysis

We are given two streets where trees were planted for greening purposes. The number of trees on the first street is 1.4 times greater than the number of trees on the second street. When 13 trees were transferred from the first street to the second street, the number of trees on both streets became equal. We need to determine the initial number of trees on each street.

Solution

Let's assume the initial number of trees on the second street is x. According to the problem, the number of trees on the first street is 1.4 times greater than the number of trees on the second street. Therefore, the initial number of trees on the first street can be expressed as 1.4x.

When 13 trees were transferred from the first street to the second street, the number of trees on both streets became equal. This can be expressed as:

1.4x - 13 = x

Now, we can solve this equation to find the value of x.

Calculation

Let's solve the equation:

1.4x - 13 = x

Subtract x from both sides:

0.4x - 13 = 0

Add 13 to both sides:

0.4x = 13

Divide both sides by 0.4:

x = 13 / 0.4

Calculating the value of x:

x = 32.5

So, the initial number of trees on the second street was 32.5.

Now, we can calculate the initial number of trees on the first street:

1.4x = 1.4 * 32.5 = 45.5

Therefore, the initial number of trees on the first street was 45.5.

Answer

The initial number of trees on the first street was 45.5, and the initial number of trees on the second street was 32.5.