Problema Solution
how much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 40% antifreeze?
Answer provided by our tutors
let
x = gal of water or 0% antifreeze needed
0*x + 1.00*1 = 0.40(x + 1)
by solving we find:
x = 1.5 gal
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1.5 gallons of water should be added.