Orly uses 3 cups of raisins for every 10 cups of trail mix she makes. How many cups of trail mix will she make if she uses 12 cups of raisins?

Answer 1

If Orly uses 3 cups of raisins for every 10 cups of trail mix, she will make (12/3)*10 = <<(12/3)*10=40>>40 cups of trail mix if she uses 12 cups of raisins. Answer: \boxed{40}.