Question

Сумма чисел 3 и 2a не меньше чем 5a

Answer 1

Ответ:

a ≤ 1.

Объяснение:

3 + 2a ≥ 5a

3 ≥ 5a - 2a

3 ≥ 3a

1 ≥ a

a ≤ 1

Answer 2

To solve the inequality "the sum of 3 and 2a is not less than 5a," we can write it as an equation and then solve for the value of 'a'.

The inequality is: 3 + 2a ≥ 5a

To isolate the 'a' term, we can subtract 2a from both sides of the inequality:

3 + 2a - 2a ≥ 5a - 2a

This simplifies to:

3 ≥ 3a

Next, we divide both sides of the inequality by 3 to solve for 'a':

3/3 ≥ 3a/3

1 ≥ a

So, the solution to the inequality is a ≤ 1.

In other words, any value of 'a' that is less than or equal to 1 will satisfy the inequality.