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Mumz [18]
2 years ago
14

How much pure acid should be mixed with 6 gallons of a 20% acid solution in order to get a 40% acid solution

Mathematics
1 answer:
Misha Larkins [42]2 years ago
3 0

Let A be the amount of 100% acid.

100A+20*(6)=40*(A+6)

100A+120=40A+240

60A=120

A=2 gallons

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