Please help me check my answer. Five gallons of light green latex paint that is 20% yellow paint are combined with a darker green latex that is 40% yellow paint. How many gallons of the darker green paint must be used to create a green paint that is 25% yellow paint?

Question

mertsj · Answer

x= gallons of dark green
.20(5)+.40x=.25(x+5)

mertsj · Answer

1+.4x=.25x+1.25
.15x=.25
x=1.67 gallons of 1 2/3 gallons

anonymous · Answer

My answer then is wrong

mertsj · Answer

What did you get and how did you get it?

anonymous · Answer

What I did is .20(5)+.40(5)=.25(x+5) thanks for help

anonymous · Answer

Mine is 7

mertsj · Answer

No.  That could not be right because there are not 5 gallons of dark green paint.

anonymous · Answer

Thanks for the help mert. Gonna post another one please help me check