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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?

  • math -

    tea = coffee-54
    tea=66, so

    66 = coffee - 54
    . . .

  • math -

    T = 66 mg
    T = C-54
    C = T+54 = 66 + 54 = ?

  • math -


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