A company sells a container of trail mix that is 10% cnady pieces and another container that is 25% candy pieces. how many cups of mixture would be needed to make 18 cups that is 20% candy pieces?

Let x be the cups of trail mix that is 10% candy pieces

Y be the cups of trail mix that is 25% candy pieces.

Since the total is 18 cups

X + y = 18

And the mix is 20% candy

0.10x + 0.25y = 18 (0.20)

Solving the equations simultaneously

X = 6 cups

Y = 12 cups