Dan wants to determine the number of liters of a 20% acid cleaning solution that he should combine with an 80% acid cleaning solution to create 50 liters of a 60% acid cleaning solution.
Part A
Let z represent the number of liters of the 20% acid cleaning solution. Which equation represents this situation?
0.6(50) 0.22 +0.83
0.25 +0.8(2 +50) -0.6(50)
© 0.22 +0.8(50 - 2) = 0.6(50)
0 0.6(50) -0.22 +0.8(x - 50)
(b)
Part B
How many liters of the 20% acid cleaning solution should Dan use? Round your answer to the nearest tenth of a liter.
liters of the 20% acid cleaning solution
Dan should use