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A mixture is 25% red paint, 30% yellow paint, and 45%water. If 4 quarts of red paint are added to 20 quarts of the mixture, what is the percentage of red paint in the new mixture?

 Oct 1, 2021
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z

 Oct 1, 2021
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A mixture is 25% red paint, 30% yellow paint, and 45%water. If 4 quarts of red paint are added to 20 quarts of the mixture, what is the percentage of red paint in the new mixture?    

 

You're starting with 20 quarts, 25% of which is red,

therefore the original mixture contains 5 quarts of red. 

 

You add 4 quarts of red to the 20, making 24 quarts  

in the new mixture, which now contains 9 quarts of red. 

 

9 / 24 = 37.5% red in the new mixture.   

.

 Oct 1, 2021

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