Answer:
5940 beats per hour
Step-by-step explanation:
1 hr = 60 mins
we are given that 2 mins : 198 beats
the unknown beats per hour = x
2 mins : 198 beats
60 mins : x beats
to get from 2 to 60 multiply by 30, so do the same to the other side
198 × 30 = 5940 beats
there are 5940 beats per hour
