Question

A mouse's heart beats about 600 times per minute (not a typo). An elephant'sheart beats about 1800 times per hour. How many times does an elephant'sheart beat in 1 minute? *Your answer

Answer 1

To obtain the answer to this question, the following steps are recommended:

Step 1: Express the elephant's heartbeat as follows:

$1800\frac{times}{\text{hour}}$

Step 2: Multiply the value by the conversion factor that leaves the heartbeat at a per-minute basis, as below:

$1800\frac{times}{\text{hour}}\times(\frac{1hour}{60\text{ minutes}})$

Step 3: Simplify to obtain the final answer, as follows:

$\begin{gathered} 1800\frac{times}{\text{hour}}\times(\frac{1hour}{60\text{ minutes}}) \\ \Rightarrow\frac{1800}{60}(\frac{times}{\text{minutes}}) \\ \Rightarrow30\frac{times}{\text{minute}} \end{gathered}$

Therefore, the elephant's heart beats 30 times in one minute