Question

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?

a. 0.15(40) + 0.6x = 0.25(40 + x)
b. 0.15(40) + 0.6(x – 40) = 0.25(x)
c. 0.15(40) + 0.6x = 0.25(40 – x)
d. 0.15(40) + 0.6(x + 40) = 0.25(x)

Answer 1

@KamiBug

Answer 2

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 3

i think its A Too

Answer 4

@shinalcantara Is A correct ?

Answer 5

yep