Answer:
k=8
Step-by-step explanation:
You can solve this by setting up an equation.
7*(k-5)=21
k-5=3
k=8
Hope this helps!
Since she is selling 1.49 per iced tea bottle, and 1.25 per water bottle, and she only consitered how many water bottles she would sell, and not iced tea bottle, the awnser would be: "Barbara's equation did not consider the number of iced tea drinks."
Answer:
All you have to do is combine the like terms. Once you do that you get: -4x+3y=-11