Question

30 апельсинов разделили между девочками и мальчиками, так что у мальчиков их оказалось на 4 больше чем у девочек. Сколько апельсинов у мальчиков, а сколько у девочек?решите

Answer 1

Х - апельсины у девочек, тогда
х+4 - апельсины у мальчиков
Составляем уравнение:
х+х+4=30
2х=30-4
2х=26
х=13 - апельсины у девочек
х+4=13+4=17 - у мальчиков

Answer 2

Solving the Problem

To solve this problem, we can use a system of equations. Let's denote the number of oranges the girls have as G and the number of oranges the boys have as B. We are given that the boys have 4 more oranges than the girls, so we can express this as:

B = G + 4

We also know that the total number of oranges is 30, so we have:

B + G = 30

Now, we can solve this system of equations to find the values of B and G.

Solution

Substituting the value of B from the first equation into the second equation, we get:

(G + 4) + G = 30

Simplifying this, we find:

2G + 4 = 30

Subtracting 4 from both sides:

2G = 26

Dividing both sides by 2:

G = 13

So, the girls have 13 oranges.

Substituting the value of G back into the equation B = G + 4, we find:

B = 13 + 4 = 17

Therefore, the boys have 17 oranges.

So, there are 17 oranges for the boys and 13 oranges for the girls.