# If the heart of an elephant at rest will beat an average 1380 beats in 60 min, what is the rate in beats per minute?

If the heart of an elephant at rest will beat an average 1380 beats in 60 min, what is the rate in beats per minute?
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Olleschauvh
We can use this ratio equation to find the solution to the problem:
$\frac{b}{1\text{min}}=\frac{1380\text{beats}}{60\text{min}}$
$\text{min}×\frac{b}{1\text{min}}=\text{min}×\frac{1380\text{beats}}{60\text{min}}$
$\overline{)\text{min}}×\frac{b}{1\overline{)\text{min}}}=\overline{)\text{min}}×\frac{1380\text{beats}}{60\overline{)\text{min}}}$
$\frac{b}{1}=\frac{1380\text{beats}}{60}$
$b=\frac{\left(60\cdot 23\right)\text{beats}}{60}$
$b=\frac{\left(\overline{)60}\cdot 23\right)\text{beats}}{\overline{)60}}$
b=23 beats