Answer:
To determine whose mix will be more watery, we need to calculate the percent of water in each mix.
For Cameron's mix, the total amount of liquid (water + lemon mix) is 3 cups + 2 cups = 5 cups. The percent of water in the mix is (3/5) x 100% = 60%.
For Sophie's mix, the total amount of liquid is 9 cups + 4 cups = 13 cups. The percent of water in the mix is (9/13) x 100% ≈ 69%.
Therefore, Sophie's lemonade will be more watery.