If you drink a cola and an energy drink, you consume 111 mg of caffeine. The energy drink has 6 more than twice the number of mg of caffeine as compared to the cola.
Use a system of equations and a graph to determine how many milligrams of caffeine are in an energy drink and a cola. Verify your answer.
Lets say c = cola and e = energy
Equation: c + e = 111 and c + 2e + 6 = 111
Are the equations right? How can get the task done?