Asked by Jesse
How much pure antifreeze must be added to 18 liters of a 20% solution to make a 40% solution ?
Answers
Answered by
Steve
consider the amount of antifreeze after adding x liters of pure antifreeze:
.20*18 + 1.00*x = .40(18+x)
.20*18 + 1.00*x = .40(18+x)
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