SOLUTION: How much pure antifreeze must be added to 12 L of a 40% solution to obtain a 60% solution? (Remember that pure antifreeze is 100% = 1.)

SOLUTION: How much pure antifreeze must be added to 12 L of a 40% solution to obtain a 60% solution? (Remember that pure antifreeze is 100% = 1.)

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Question 235012: How much pure antifreeze must be added to 12 L of a 40% solution to obtain a 60% solution? (Remember that pure antifreeze is 100% = 1.)

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
In words:
(total liters of pure)/(total liters) = 60%
Let = liters of pure (100%) antifreeze to be added

6 liters of pure antifreeze must be added

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