Question 177529
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amount of pure antifreeze   pure antifreeze to + pure antifreeze = pure antifre
in original solution      - be drained out       added             in final sol.
:
Let x represent the amount of antifreeze to be added
:
.5(16)-.5(x)+x=.6(16)
:
8-.5x+x=9.6
:
.5x=1.6
:
{{{highlight(x=3.2)}}}gallons of pure antifreeze
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