Answer:
2.5 hours
Explanation:
Given information:
- Expert autos charges a diagnostic fee of $50 plus $60 per hour in labor.
- Auto Specialists charge $80 per hour in labor.
Define the variables:
- Let x = the number of hours labor.
- Let y = the total charge (in dollars).
Create two equations with the given information and defined variables to model the total charge per garage.
Expert Autos
Auto Specialists
To find at how many hours would they both charge the same, substitute the second equation into the first and solve for x:
Therefore, both garages would charge the same at 2.5 hours.