For 10 seconds Ariana places her finger on her radial artery and counts her heartbeats. In 10 seconds, she counts 15 beats. What is Ariana’s current heart rate based on this measurement?

Question

(1 point)
Responses

25

25

90

90

15

15

115

115
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Answer 1

To calculate the heart rate in beats per minute (BPM), you can use the formula:

\[ \text{Heart Rate (BPM)} = \left( \frac{\text{Number of beats in 10 seconds}}{10} \right) \times 60 \]

In Ariana's case, she counted 15 beats in 10 seconds.

Using the formula:

\[ \text{Heart Rate (BPM)} = \left( \frac{15}{10} \right) \times 60 = 1.5 \times 60 = 90 \]

So, Ariana’s current heart rate is 90 BPM.