Question

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)

Answer 1

its A...

Answer 2

How'd you get A?

Answer 3

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

Answer 4

Thank you! :)

Answer 5

\[0.15(40) + 0.6x = 0.25(40 + x)\]

Answer 6

ur welcome... :)