SOLUTION: Together, a 20 fluid ounce Coca-Cola and a 20 fluid ounce Pepsi contain 34 teaspons of added sugar. The Coca-Cola contains 1 tsp less of added sugar than the Pepsi. (Source: Nutrit

Algebra ->  Expressions -> SOLUTION: Together, a 20 fluid ounce Coca-Cola and a 20 fluid ounce Pepsi contain 34 teaspons of added sugar. The Coca-Cola contains 1 tsp less of added sugar than the Pepsi. (Source: Nutrit      Log On


   

Question 884353: Together, a 20 fluid ounce Coca-Cola and a 20 fluid ounce Pepsi contain 34 teaspons of added sugar. The Coca-Cola contains 1 tsp less of added sugar than the Pepsi. (Source: Nutrition Action HealthLetter, January/February 2010) Find the amount of added sugar in each type of soft drink.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
c = coca cola added sugar
p = pepsi cola added sugar

c+p=34 and c=-1+p.

That second equation equivalent to c-p=-1.

SYSTEM:
----------------
c+p=34
-
c-p=-1
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Add them to eliminate p.
2c=33
c=33/2 or 16.5, coca cola

p=34-c
p=34-16.5
p=17.5, pepsi cola