Final answer:
To make 6 quarts of 80% fruit punch, mix 4.5 quarts of 100% fruit juice with 1.5 quarts of 20% fruit juice.
Step-by-step explanation:
The student is tasked with creating a mixture of 6 quarts of fruit punch with an 80% concentration of fruit juice using 100% fruit juice and 20% fruit juice. To solve this, we can use a system of equations to find the amounts of each type of juice needed.
Let x be the quantity of 100% fruit juice and y be the quantity of 20% fruit juice. We have two equations based on the total volume and the desired concentration:
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Solving this system:
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Hence, 4.5 quarts of 100% fruit juice and 1.5 quarts of 20% fruit juice are required to make 6 quarts of 80% fruit punch.