Question

a patient takes 1 breath every 14 seconds. how many breathes do they take in 60 seconds (1 min)? Express your answer in breaths per minute using an appropriate number of significant figures.

Answer 1

Okay so the rate he is breathing is 1 breath/14 seconds.

Now you need to know how many breaths he takes in 60 seconds(1 min)

1/14 = x/60

Now, cross multiply;

60 = 14x

x = 60/14

x = 4.285

So He takes 4.285 or 4.29 or 4.3 breaths per minute depending on what place value you're rounding to.