Answer:
There are 16 servings in the bottle.
Step-by-step explanation:
The equation for the amount of juice left in the bottle is:
y = 128 - 8*x
Where x is the number of servings of juice poured from the bottle.
The total number of servings that are in the bottle is the value of x such that we have y = 0 (because in that point, we do not have more juice left)
Then we need to solve:
y = 0 = 128 - 8*x
8*x = 128
now we can just divide both sides by 8
x = 128/8 = 16
There are 16 servings in the bottle.
