Which number is composite in 23897993?
A composite number is a number that has multiple factors (9: 1,3,9)
I think it is 10 lol sorry I’m not sure
Let us convert the percentages to decimal format first.. so 5% is just 5/100 or 0.05 and 15% is just 15/100 or 0.15
so hmmm, so, let's say it needs "x" amount and "y" amount of each respectively, so, whatever "x" and "y" are, they must add up to 100, and whatever their concentration is, must add up to what the mixture yields
thus

solve for "x"
what's "y"? well, y = 100 - x
Answer:
What expression are we supposed to be answering this for?