Question

ТЫ ИССЛЕДОВАТЕЛЬ 8 Реши задачу. В парке растут ели, липы и сосны. Сосен илип вместе 400, сосен и елей - 300, елей и лип - 440 Сколько в парке елей, сколько лип и сколько сосен?ПОМОГИТЕ​

Answer 1

Ответ:440-40=400

Пошаговое объяснение:

Answer 2

Problem Analysis

We are given the information that there are a total of 400 pines and lindens together, 300 pines and firs together, and 440 lindens and firs together. We need to determine the number of lindens, firs, and pines in the park.

Solution

Let's assume the number of pines is represented by P, the number of lindens is represented by L, and the number of firs is represented by F.

From the given information, we can form the following equations:

1. P + L = 400 (Equation 1) 2. P + F = 300 (Equation 2) 3. L + F = 440 (Equation 3)

To solve this system of equations, we can use substitution or elimination method. Let's use the elimination method.

Adding Equation 1 and Equation 2, we get:

2P + L + F = 700 (Equation 4)

Subtracting Equation 3 from Equation 4, we get:

2P + L + F - L - F = 700 - 440

Simplifying, we have:

2P = 260

Dividing both sides by 2, we find:

P = 130

Now, we can substitute the value of P into Equation 1 to find the value of L:

130 + L = 400

Simplifying, we have:

L = 400 - 130 = 270

Finally, we can substitute the values of P and L into Equation 3 to find the value of F:

270 + F = 440

Simplifying, we have:

F = 440 - 270 = 170

Therefore, there are 130 pines, 270 lindens, and 170 firs in the park.

Answer

In the park, there are 130 pines, 270 lindens, and 170 firs.