Solve. If needed, round money amounts to two decimal places and all other amounts to one decimal place.
-How much pure acid should be mixed with 3 gallons of a 50% acid solution in order to get an 80% acid solution?
A) 12 gal
B) 4.5 gal
C) 7.5 gal
D) 1.5 gal

Question

Quizplus · Accepted Answer

To achieve an 80% acid solution by mixing pure acid (100%) with a 3-gallon 50% acid solution, we set up the equation: 100%x + 50%(3) = 80%(x + 3). Solving for x gives x = 4.5 gallons.

Solve If Needed, Round Money Amounts to Two Decimal Places