There are mL of lemonade in a pitcher. Each ice cube added to the pitcher increases the volume by mL.
How many ice cubes need to be added until the volume of the pitcher is 11 mL?
Let's say x is the number of ice cubes added to the pitcher.
Since each ice cube added to the pitcher increases the volume by 2 mL, the total increase in volume will be 2x mL.
The total volume of the pitcher after adding x ice cubes will be the original volume (8 mL) plus the increase in volume (2x mL), which can be written as 8 + 2x.
We want to find the number of ice cubes (x) needed until the volume of the pitcher is 11 mL, so we can set up the equation:
8 + 2x = 11
Subtracting 8 from both sides of the equation:
2x = 11 - 8
2x = 3
Dividing both sides of the equation by 2:
x = 3/2
x = 1.5
Since we cannot have half of an ice cube, we need to round up to the nearest whole number. Therefore, we need to add 2 ice cubes (x = 2) until the volume of the pitcher is 11 mL.