The correct answers is 43.33%
6.25 : 14
6.25 parts lemonade, 14 parts combined in both recipes
Caden: 3.75 : 8 for his recipe, 3.75 : 14 for all total ingredients
Samntha: 2.5 : 6 for her recipe, 2.5 : 14 for all total ingredients
T-6=-4
Just simply add 6 to both sides, it will cancel out the -6 and leave T alone, and it will become T=2, There's your answer.