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

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: How much thinner must be mixed with 8 gallons of paint to get a mixture that is 80% paint?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

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) About Me  (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?
----------
Equation:
paint + paint = paint
1*8 + 0*x = 0.8(8+x)
-----
Multiply thru by 10 to get:::
80 + 0 = 8*8 +8x
8x = 16
x = 2 gallons (amt of thinner needed)
==============
Cheers,
Stan H.
==============