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

Answer 1

To calculate Ariana's heart rate in beats per minute (BPM) based on her count of 15 beats in 10 seconds, you can use the following calculation:

1. First, find out how many beats occur in one minute by multiplying the number of beats counted in 10 seconds by 6 (since there are 60 seconds in a minute):

   \[ \text{Heart rate (BPM)} = \text{Number of beats in 10 seconds} \times 6 \] \[ \text{Heart rate (BPM)} = 15 \times 6 = 90 \]

Therefore, Ariana's current heart rate is 90 BPM.