A cup of brewed tea has 54 milligrams less caffeine than a cup of brewed coffee. If a cup of tea has 66 milligrams of caffeine, how much caffeine is in a cup of coffee?
To find the caffeine content in a cup of coffee, we can subtract the 54 milligrams from the caffeine content of a cup of tea.
Caffeine in coffee = Caffeine in tea + Difference
Caffeine in coffee = 66 milligrams + 54 milligrams
Caffeine in coffee = 120 milligrams
Therefore, a cup of brewed coffee has 120 milligrams of caffeine.
To determine how much caffeine is in a cup of coffee, we can calculate it by adding the 54 milligrams that tea has less than coffee to the amount of caffeine in a cup of tea.
Given that a cup of tea has 54 milligrams less caffeine than a cup of coffee, and the cup of tea has 66 milligrams of caffeine, we can find the amount of caffeine in a cup of coffee by adding the 54 milligrams.
66 milligrams (caffeine in a cup of tea) + 54 milligrams (difference in caffeine between tea and coffee) = 120 milligrams.
Therefore, there is 120 milligrams of caffeine in a cup of coffee.
T = 66 mg
T = C-54
C = T+54 = 66 + 54 = ?
tea = coffee-54
tea=66, so
66 = coffee - 54
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