Question

The amount of caffeine varies greatly from product to product. Click [here] to examine a table comparing the caffeine content of a variety of drinks. Use the data from the table to answer the questions.

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

Without knowing the caffeine per serving we can’t solve this completely but we can at least set up the system of eqns

Let t = servings of tea and e = servings of espresso

t + e = 8

We also can write an expression for the total amount of caffeine

(Caffeine per serving tea)t + (caffeine per serving espresso)e = 482