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A pineapple drink contains 15% pineapple juice. How much pure pineapple juice should be added to 8 quarts of the drink to obtain a mixture containing 50% pineapple juice?

A pineapple drink contains 15 pineapple juice How much pure pineapple juice should be added to 8 quarts of the drink to obtain a mixture containing 50 pineapple class=
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Answer:

5.6 quarts

Step-by-step explanation:

x + .15(8) = .50(8+x)

x + 1.2 = 4

.50x + 1.2 = 4

.50x = 2.8

x = 2.8/.50

x = 5.6 quarts 

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