Question

In order to determine her pulse rate, Kimi counted 16 heartbeats in 12 seconds. At this rate, how many heartbeats would she have in 60 seconds?

Answer 1

Answer:

80 heartbeats in 60 seconds.

Step-by-step explanation:

12 seconds = 16 heartbeats

1 second =

$\frac{16}{12} = \frac{4}{3} \: heartbeat \\ 60 \: seconds \: heartbeat \: = \frac{4}{3} \times 60 \\ = 80 \: heartbeats$