Question

В трёх селах проживают 8658 человек. Сколько человек живет в каждом селе, если в первом и третьем живут 5087 человек, а во втором и третьем 4756?

Answer 1

8568-5087=3571(чел.) живет в третьем селе
8658-4756=3903(чел.) живет в первом селе
3903+3571=7474(чел) живет в третьем и в первом селе
8658-7474=1184(чел) живет во втором селе
ОТВЕТ: 3903 чел. живет в первом селе, 3571 чел. живет в третьем селе, 1184 чел. живет вш

Answer 2

Calculating Population Distribution in Three Villages

To find out how many people live in each village, we can use the given information about the total population in each pair of villages.

Let's denote the population in the first village as A, the population in the second village as B, and the population in the third village as C.

We are given the following information: - The total population in the first and third villages (A + C) is 5087. - The total population in the second and third villages (B + C) is 4756. - The total population in all three villages (A + B + C) is 8658.

We can set up a system of equations to solve for the population in each village.

1. A + C = 5087 2. B + C = 4756 3. A + B + C = 8658

We can solve this system of equations to find the population in each village.

Let's start by solving equations 1 and 2 simultaneously to find the population in the third village (C).

Adding equations 1 and 2: A + C + B + C = 5087 + 4756 A + B + 2C = 9843

Substitute the value of A + B + C from equation 3: 8658 + C = 9843 C = 9843 - 8658 C = 1185

Now that we have the population in the third village (C), we can substitute this value back into equations 1 and 2 to find the populations in the first and second villages.

Substitute C = 1185 into equation 1: A + 1185 = 5087 A = 5087 - 1185 A = 3902

Substitute C = 1185 into equation 2: B + 1185 = 4756 B = 4756 - 1185 B = 3571

So, the population in each village is: - First village (A): 3902 - Second village (B): 3571 - Third village (C): 1185