Answer:
There is 120 milligrams of caffeine in a cup of coffee.
Step-by-step explanation:
A cup of brewed tea has 54 milligrams less caffeine than a cup of brewed coffee. A cup of tea has 66 milligrams of caffeine.
Let the amount of caffeine in a cup of coffee be = x
In the equation form, we can denote this as:
\(66=x-54\)
Solving for x
\(x=66+54\)
x = 120
Therefore, there is 120 milligrams of caffeine in a cup of coffee.
