SOLUTION: Frank needs to apply a 10% liquid nitrogen solution to his rose garden. He only has a 4% nitrogen solution and a 20% nitrogen solution. How much of each should he mix if he needs 1
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Question 807259: Frank needs to apply a 10% liquid nitrogen solution to his rose garden. He only has a 4% nitrogen solution and a 20% nitrogen solution. How much of each should he mix if he needs 10 gallons of a 10% nitrogen solution
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Frank needs to apply a 10% liquid nitrogen solution to his rose garden. He only has a 4% nitrogen solution and a 20% nitrogen solution. How much of each should he mix if he needs 10 gallons of a 10% nitrogen solution
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Equation:
nitro + nitro = nitro
0.04x + 0.20(10-x) = 0.10*10
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4x + 20*10 - 20x = 10*10
-16x = -10*10
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x = 50/8
x = 6.25 gallons (amt. 4% solution needed)
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10-x = 3.75 gallons (amt. of 20% solution Needed)
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Cheers,
Stan H.
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