Question

У Марини сьогодні день народження. Вона молодша від свого брата, якому цими днями виповнилось 8 років. Скільки років Марині. Складі нерівність і вкажи множину її розв'язків.

Answer 1

Марини 7 років томущо тут сказано недавно йй брату виповнилося 8 років

Answer 2

Problem Analysis

To determine Marina's age, we need to know her brother's age and the fact that she is younger than him. Her brother recently turned 8 years old. We can set up an inequality to represent the relationship between their ages and find the possible values for Marina's age.

Solution

Let's assume Marina's age is represented by the variable "M". Since she is younger than her brother, we can set up the following inequality:

M < 8

This inequality states that Marina's age is less than 8 years. To find the set of possible solutions, we need to determine all the values of "M" that satisfy this inequality.

Set of Solutions

The set of solutions for the inequality M < 8 is all the values of "M" that are less than 8. Since we don't have any specific information about Marina's age, we can consider any value less than 8 as a possible solution.

Therefore, the set of solutions for Marina's age is:

M ∈ (-∞, 8)

This means that Marina's age can be any value less than 8.

I hope this helps! Let me know if you have any further questions.