I ususally mix two powders together at a 1 to 1 ratio. I had a large amount of powder given to me and I didn't have equal parts and having a brainfart, I mixed them together and now I'm stuck with a difficult math problem. Here it is. I mixed 16 ounces of X with 6 ounces of Y giving me a non- 50/50 mixture. I found another 6 ounces of Y today. How much of the XY blend would I have to siphon off so that I can add the additional 6 ounces and end up with a 50/50 mixture of X & Y? Thanks in advance!!