Answer:
265
Step-by-step explanation:
We are given that a ruby-throated humming bird beats its wings about 53 times each second.
We have to find how many times a ruby-throated humming bird beat its wings in 5 seconds.
In order to find that how many times does a ruby- throated humming bird beats its wings in 5 seconds we will multiply 53 by 5.
Ruby-throated humming bird beat its wings in 5 seconds=\(53\times 5=265\)
Hence, a ruby-throated humming bird beats its wings in 5 seconds =265
