SOLUTION: How much thinner must be mixed with 8 gallons of paint to get a mixture that is 80% paint?

Question 776665: How much thinner must be mixed with 8 gallons of paint to get a mixture that is 80% paint?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How much thinner must be mixed with 8 gallons of paint to get a mixture that is 80% paint?
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Equation:
paint + paint = paint
1*8 + 0*x = 0.8(8+x)
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Multiply thru by 10 to get:::
80 + 0 = 8*8 +8x
8x = 16
x = 2 gallons (amt of thinner needed)
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Cheers,
Stan H.
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