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rjkz [21]
3 years ago
12

How many gallons of pure water must be added to 10 gal of 30% salt water to make a solution that is 25% salt water?

Mathematics
1 answer:
dezoksy [38]3 years ago
6 0

Answer:

2 gallons must be added Hope this helps!

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Let:

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\begin{gathered} Vbu=Vbk \\ 70-0.05x=20+0.05x \\ \text{Solve for x:} \\ 0.1x=70-20 \\ 0.1x=50 \\ x=\frac{50}{0.1} \\ x=500 \end{gathered}

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