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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? Write this problem in an equation.

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x-54= 66        x being the amount of caffeine in the cup of coffee.

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:

[tex]66=x-54[/tex]

Solving for x

[tex]x=66+54[/tex]

x = 120

Therefore, there is 120 milligrams of caffeine in a cup of coffee.

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