Question

У Армана на 20 баллов меньше ,чем у Дамира и Виктора вместе,а у Виктора на 10 баллов меньше,чем у Дамира и Армана вместе.Сколько баллов было у Дамира?

Answer 1

Ответ:

всё подробно решено на фото

Answer 2

Problem Analysis

We are given the following information: - Arman has 20 points fewer than Damir and Viktor combined. - Viktor has 10 points fewer than Damir and Arman combined.

We need to determine the number of points Damir has.

Solution

Let's assume the number of points Damir has is D.

According to the given information: - Arman has 20 points fewer than Damir and Viktor combined, so Arman has D + V - 20 points. - Viktor has 10 points fewer than Damir and Arman combined, so Viktor has D + (D + V - 20) - 10 points.

Now, we can set up an equation to solve for Damir's points:

D = D + (D + V - 20) - 10

Simplifying the equation:

D = 2D + V - 30

Rearranging the equation:

D - 2D = V - 30

-D = V - 30

D = 30 - V

Therefore, Damir has 30 - V points.

Answer

Damir has 30 - V points.

Note: We do not have the specific values for

Answer 3

Problem Analysis

We are given the following information: - Arman has 20 points less than Damir and Viktor combined. - Viktor has 10 points less than Damir and Arman combined.

We need to determine the number of points Damir has.

Solution

Let's assume the number of points Damir has is D.

According to the given information: - Arman has 20 points less than Damir and Viktor combined, so Arman has (D + V - 20) points. - Viktor has 10 points less than Damir and Arman combined, so Viktor has (D + (D + V - 20) - 10) points.

To find the value of D, we can substitute the expressions for Arman and Viktor into the equation:

D = (D + (D + V - 20) - 10)

Simplifying the equation:

D = 2D + V - 30

Rearranging the equation:

D - 2D = V - 30

-D = V - 30

D = 30 - V

Therefore, the number of points Damir has is 30 - V.

Answer

The number of points Damir has is 30 - V.

Note: We don't have the specific values for Arman and Viktor, so we cannot determine the exact number of points Damir has without that information.