To calculate Ariana's heart rate based on her measurement, you can use the formula to find beats per minute (BPM).
- She counted 15 beats in 10 seconds.
- To convert this to beats per minute, multiply the number of beats by 6 (since there are 60 seconds in a minute and you counted for 10 seconds).
So, the calculation would be:
\[ \text{Heart Rate (BPM)} = 15 , \text{beats} \times \left(\frac{60 , \text{seconds}}{10 , \text{seconds}}\right) = 15 , \text{beats} \times 6 = 90 , \text{BPM} \]
Ariana's current heart rate is 90 beats per minute.