Answer:
• 120 pints of 35% juice
• 30 pints of 60% juice
Step-by-step explanation:
You are asked to find the quantity of each kind of juice, and you are told the total quantity required. It is generally convenient to choose a variable to represent the quantity that makes the greatest contribution to the mix. Here, that is the 60% juice, so we can let q represent the quantity (in pints) required of that.
Then (150-q) is the quantity required of 35% juice.
The total amount of juice in the mix is ...
0.60q + 0.35(150 -q) = 0.40·150
0.25q = 150(0.40 -0.35) . . . . simplify, subtract 0.35·150
q = 150(0.05/0.25) = 30 . . . . pints of 60% juice
150-q = 120 . . . . . . . . . . . . . . . pints of 35% juice
120 pints of 35% juice and 30 pints of 60% juice are required to make 150 pints of 40% juice.
