A bottle of fruit jucie contains 20% water. How much water must be added to this bottle to produce 8 L of fruit juice that is 50% water
1
Expert's answer
2011-04-07T05:49:03-0400
Let's construct the system of equations. Denote the initial volume of juice as X, thus it contains 0.2X of the water,& the volume of the water to be added as Y, (0.2X +Y) = 0.5*8 = 4 ; X +Y =8. Y = 8 - X, 0.2X + 8 - X = 4 X& = 5;& Y = 3. Answer: 3 liters of the water must be added.
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