Question

Leo drank 8 servings of iced tea and espresso beverages containing a total of 482 mg of caffeine. How many servings of espresso did he drink?

Answer 1

set up a system of equations

let T = # of servings of iced tea and E = # of espresso beverages

"8 servings of iced tea and espresso" ---> T + E = 8
"containing a total caffeine content of 482 mg" --> (caffeine per serving, iced tea)(T) + (caffeine per serving, espresso)E = 482

solve for E