To find out how many birds all of the students can make in 55 minutes, we can follow these steps:
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Determine how many birds one student can make in 55 minutes: Each student can make 2 birds in 1 minute. Therefore, in 55 minutes, one student can make: \[ 2 \text{ birds/minute} \times 55 \text{ minutes} = 110 \text{ birds} \]
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Determine how many birds all 27 students can make: Now, we multiply the number of birds one student can make by the total number of students: \[ 110 \text{ birds/student} \times 27 \text{ students} = 2,970 \text{ birds} \]
Since "about how many birds" is asked, we can approximate this based on the given options. The closest choice to 2,970 is not among the provided options (3,000 is the closest).
Thus, the answer is approximately:
3,000