Question

Three times the sum of a number and 15 is at most 19

Answer 1

Let x be the number. Then, we have the inequality:

3(x + 15) ≤ 19

Expanding the left side:

3x + 45 ≤ 19

Subtracting 45 from both sides:

3x ≤ -26

Dividing both sides by 3:

x ≤ -8.67

So, the solution to the inequality is x ≤ -8.67, which means that the number x must be less than or equal to -8.67.