Question

(12, 18), (10, 15), (6, 9), (4, 6)
What is the average number of heartbeats per second?

Answer 1

To find the average number of heartbeats per second, we need to calculate the total number of heartbeats and divide it by the total time elapsed.

First, we need to find the total number of heartbeats: (18 + 15 + 9 + 6) = 48

Next, we need to find the total time elapsed: (12 - 4) = 8 seconds

Finally, we divide the total number of heartbeats by the total time elapsed: 48 / 8 = 6

Therefore, the average number of heartbeats per second is 6.