Based on the information given regarding the percentage, the concentration of the new mixture will be 3.8 gallons.
From the information given, it was stated that a gallon of 80% acid was mixed with 3 gallons of water.
Therefore, the concentration of the new mixture will be:
= (80% × 1) + 3
= (0.8 × 1) + 3
= 0.8 + 3
= 3.8
Therefore, the new concentration will be 3.8.
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