Question

1.1,5(2a-1+3)+2a<а +2,9​

Answer 1

Ответ: 1,5*(2а-1+3)+2а<а+2,9

Умножаем на 1,5 числа в скобке получаем 3а-1,5+4,5+2а<а+2,9

Складываем числа и получаем

5а+3<а+2,9. Переносим числа за <

4а<-0,1

а< -0,025

Или же а<-1/40

Пошаговое объяснение:

Answer 2

1,5(2а-1+3)+2а< а+2,9
3а-1,5+4,5+2а<а+2,9
5а+3<а+2,9
5а-а<2,9-3
4а<-0,1
А<-0,025

Answer 3

To solve the inequality 1.1 * (2a - 1 + 3) + 2a < a + 2.9, we can follow these steps:

1. Distribute the 1.1 to the terms inside the parentheses: 2.2a - 1.1 + 3.3 + 2a < a + 2.9

2. Combine like terms on both sides of the inequality: 4.2a + 2.2 < a + 2.9

3. Subtract a from both sides to isolate the "a" term on one side: 4.2a - a + 2.2 < 2.9

   Simplifying: 3.2a + 2.2 < 2.9

4. Subtract 2.2 from both sides to isolate the "a" term: 3.2a + 2.2 - 2.2 < 2.9 - 2.2

   Simplifying: 3.2a < 0.7

5. Divide both sides by 3.2 to solve for "a": (3.2a) / 3.2 < 0.7 / 3.2

   Simplifying: a < 0.21875

Therefore, the solution to the inequality is "a" is less than 0.21875, or in interval notation (-∞, 0.21875).