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anonymous

  • one year ago

I will medal! Fifteen percent of the pigment in paint color A is black. Sixty percent of the pigment in paint color B is black. An unknown amount of paint color B is mixed with 40 ml of paint color A, resulting in a paint that contains 25% black pigment. Which equation can be used to solve for x, the total amount of paint in the mixture of the two colors? 0.15(40) + 0.6x = 0.25(40 + x) 0.15(40) + 0.6(x – 40) = 0.25(x) 0.15(40) + 0.6x = 0.25(40 – x) 0.15(40) + 0.6(x + 40) = 0.25(x)

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  1. anonymous
    • one year ago
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    its A...

  2. anonymous
    • one year ago
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    How'd you get A?

  3. anonymous
    • one year ago
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    It should be A. :) The two terms on the left side represent the amount of black pigment with each paint color. On the right side it has the 25% in the new color combination of A (40ml) and the unknown amount (x) of B

  4. anonymous
    • one year ago
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    Thank you! :)

  5. anonymous
    • one year ago
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    \[0.15(40) + 0.6x = 0.25(40 + x)\]

  6. anonymous
    • one year ago
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    ur welcome... :)

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