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gdeorsey
02.12.2020 •
Mathematics
When a ruby-throated hummingbird hovers, it beats its wings about 55 times
per second. At this rate, how many times would a ruby-throated hummingbird,
beat its wings if it hovered for 2 minutes?
1. 110
2. 3,300
3. 6,600
4. 11,000
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