Question

You drink a cup of coffee with 120 mg of caffeine. Each

hour, the caffeine in your system decreases by about
12%. Two hours after you drink the coffee, how much
caffeine will be left in your system?
Round your answer to the nearest hundredth, and
make sure to include units.
Show ALL your work to the left, write your final answer
below!

Answer 1

91.2 mg of coffee left in your system 2 hours from consumption

Explanation:

120 x .12 = 14.4

14.4 x 2 = 28.8

120 - 28.8 = ...

91.2 mg