• Describe a real-world situation that can be modeled by 3x = 42. Solve the equation and tell what the solution means in the context of your problem.
Simple.
The manager of a restaurant earns three times as much money as the waiter. In one week, the manager earned forty-two dollars.
3x = 42 Use the inverse operations by dividing 3 from
3 both sides of the equation to isolate x.
x =14
The waiter only earns 14 dollars a week whereas the manager earns 42 dollars a week. Since the manager makes 3 times as much as the waiter (3*14), we know that the manager earns 42 dollars a week.
