SOLUTION: you have a 6-pint mixture of paint that is made up of equal amount of red and yellow paint. To create a certain shade of orange, you need a paint mixture that is 30% red. How many

Algebra ->  Rate-of-work-word-problems -> SOLUTION: you have a 6-pint mixture of paint that is made up of equal amount of red and yellow paint. To create a certain shade of orange, you need a paint mixture that is 30% red. How many       Log On


   



Question 957101: you have a 6-pint mixture of paint that is made up of equal amount of red and yellow paint. To create a certain shade of orange, you need a paint mixture that is 30% red. How many pints of yellow paint do tou need to add to the mixture?
Found 2 solutions by macston, josgarithmetic:
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
1/2(6 pint)=3 pints of red
3 pints/0.30=10 pints The 3 pints of red in the 6 pints will make 10 pints of the orange shade, so you need to add 4 pints yellow to the 6 pints to make 10 pints.

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Consider that the 6 pint mixture of red and yellow paints is 50% red, and the yellow is like a carrier. Wanted is 30% red, using added yellow to reduce the concentration of the red paint. Adding the yellow adds volume but does not add red paint.

Let y be the volume in pints of yellow paint.

%286%2A50%29%2F%28y%2B6%29=30

Solve for y.