Final answer:
To find out how much sugar water 12 hummingbirds need, calculate the amount one hummingbird drinks by dividing 7.5 ounces by 9, and then multiply that result by 12. The 12 hummingbirds would need 10 ounces of sugar water per day.
Step-by-step explanation:
To find the amount of sugar water needed for 12 hummingbirds when we know that nine hummingbirds drink 7.5 ounces a day, we set up a simple proportion.
First, we find the amount of sugar water one hummingbird drinks by dividing 7.5 ounces by 9.
Then, we multiply that amount by 12 to find the sugar water requirement for 12 hummingbirds
- Calculate the daily sugar water consumption for one hummingbird: 7.5 ounces ÷ 9 = 0.833 ounces.
- Multiply the sugar water consumption of one hummingbird by 12 to find the total for 12 hummingbirds: 0.833 ounces × 12 = 10 ounces.
Therefore, 12 hummingbirds would need 10 ounces of sugar water per day.