A person took their pulse for 6 seconds and counted 8 beats during that time. What is their heart rate?
Understand the Problem
The question is asking to calculate the heart rate based on the number of beats counted over a specific period of time. To solve this, we will convert the count of beats in 6 seconds to beats per minute (BPM).
Answer
The formula for heart rate in BPM is $BPM = 10B$, where $B$ is the count of beats in 6 seconds.
Answer for screen readers
The heart rate in beats per minute (BPM) is given by the formula $BPM = 10B$, where $B$ is the number of beats counted in 6 seconds.
Steps to Solve
- Identify the number of beats counted
Let’s say the number of beats counted in 6 seconds is represented as $B$.
- Calculate beats per second
To find beats per second, divide the total beats by the number of seconds:
$$ \text{Beats per second} = \frac{B}{6} $$
- Convert to beats per minute
To convert beats per second to beats per minute, multiply by 60 (since there are 60 seconds in a minute):
$$ \text{Beats per minute (BPM)} = \text{Beats per second} \times 60 $$
Substituting the equation from the previous step:
$$ \text{BPM} = \left( \frac{B}{6} \right) \times 60 $$
This simplifies to:
$$ \text{BPM} = 10B $$
- Final Calculation
So, if you have the number of beats $B$, you can now simply multiply it by 10 to get the BPM.
The heart rate in beats per minute (BPM) is given by the formula $BPM = 10B$, where $B$ is the number of beats counted in 6 seconds.
More Information
This formula helps to quickly estimate heart rate based on short intervals of counting beats. Heart rates can vary widely based on activity level, age, and individual health.
Tips
- Forgetting to convert seconds to minutes by multiplying by 60.
- Miscounting the number of beats, which will directly affect the BPM calculation.
- Not simplifying the expression correctly.
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