To find the average number of heartbeats per second, we can use the following formula:
Average number of heartbeats per second = Total number of heartbeats / Total time in seconds
From the graph, we can see that the resting heart rate line is constant at 3 heartbeats for each 2-second interval. Therefore, in each 2 seconds, there are 3 heartbeats.
The total time in seconds is given as 12 seconds.
Using the formula: Average number of heartbeats per second = 3 heartbeats / 12 seconds = 1/4 beats per second.
So the average number of heartbeats per second is 1/4 beats per second.
Use the image to answer the question.
A graph shows an x-axis representing time in seconds ranging from 0 to 12 in increments of 2. The y-axis represents heartbeats ranging from 0 to 18 in increments of 3. The graph shows a line representing resting heart rate.
What is the average number of heartbeats per second?
(1 point)
Responses
3 beats per second
1 1/2 beats per second
2 beats per second
2/3 beat per second
1 answer