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Posted by on Wednesday, January 26, 2011 at 4:43pm.

a paint color is made by mixing red and yellow paint. the ratio of red to yellow is 4 to 9. how many quarts of yellow paint must be used for 12 quarts of red? explain how you find your answer.

  • math - , Wednesday, January 26, 2011 at 4:45pm

    Set up a proportion, cross multiply, and solve for x.

    4/9 = 12/x

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