SOLUTION: How much water must be mixed with 4 pints of a solution that is 90% developer to produce a mixture that is 17% developer?
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Question 612772: How much water must be mixed with 4 pints of a solution that is 90% developer to produce a mixture that is 17% developer?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How much water must be mixed with 4 pints of a solution that is 90% developer to produce a mixture that is 17% developer?
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Equation:
water + water = water
x + 0.10*4 = 0.83(x+4)
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100x + 10*4 = 83x + 83*4
17x = 73*4
x = 17.18 pints (amt. of water to be added)
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Cheers,
Stan H.
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