Respuesta :

Answer:

The answer to your question is     12x + 24y ≤ 120

Step-by-step explanation:

Data

12 min oil change and variable x

24 minutes tire change and variable y

total time = 120 min

Process

1.- Calculate the number of oil changes

                    12x

2.- Calculate the number of tire changes

                    24y

3.- Calculate the total number of changes

                    12x + 24y

4.- Write the inequality

                     12x + 24y ≤ 120

Use ≤ to mention that 120 is been considered.