Question 821804
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Hi,
How much 20% disinfectant solution must be mixed with a 30% disinfectant solution {{{highlight_green(x)}}}
to produce a 40gal of 27% disinfectant solution
Question states***
.30x + .20(40-x) = .27*40gal ***    
 30x + 20(40-x) = 27*40gal     |after multiplying thru by 100
       10x = 280gal
         x = 28 gal
CHECKING our answer***
 8.4gal + 2.4gal = 10.8 gal  (amount of disinfectant)