Question 796392
Five gallons of a dark green latex paint that is 20% yellow paint are combined with a lighter green latex paint that is 40% yellow paint. How many galloons of the lighter green paint must be used to create a green paint that is 25% yellow paint?

.20x+.40(x+5)=1.25
.20x+.40x+2=1.25
.60x+2=1.25
.60x=.75
x=1.083????
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5*20 + x*40 = (5+x)*25