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 +0.87
0.23 +0.8(50 - 2) = 0.6(50)
0.6(50) = 0.2x + 0.8(x - 50)
0.22 + 0.8(2 + 50) = 0.6(50)
Part B
How many liters of the 20% acid cleaning solution should Dan use? Round your answer to the nearest tenth of a liter.
Dan should use
liters of the 20% acid cleaning solution