## Related questions with answers

Question

The blue-throated hummingbird has a heart rate of about 1,260 beats per minute. Explain how you would calculate the number of times the hummingbird's heart beats in a 24-hour day. Then find the number of beats in a 24-hour day.

Solution

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1 of 2There are $60$ minutes in $1$ hour. With a heart rate of $1260$ beats per minute, then in $1$ hour, the number of beats is

$\begin{align*} & 1260(60) .\end{align*}$

There are $24$ hours in $1$ day. Hence, the number of beats in a $24$-hour day is

$\begin{align*} & 1260(60)(24) \\&= 1,814,400\text{ beats} .\end{align*}$

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