Final answer:
To find the percentage of ounces Derek has left in his water bottle, subtract the amount he drank from the total ounces and calculate the percentage.
Step-by-step explanation:
To find the percentage of ounces Derek has left in his water bottle, we need to calculate the remaining ounces as a percentage of the total ounces in the bottle.
First, let's find the remaining ounces by subtracting the amount Derek drank from the total ounces:
32 ounces - 24 ounces = 8 ounces
Next, we can calculate the percentage by dividing the remaining ounces by the total ounces and multiplying by 100:
(8 ounces / 32 ounces) x 100 = 25%
Therefore, Derek has 25% of the ounces left in his water bottle.