While exercising, Julie found that her heart was beating 12 times every 5 seconds. How many times was it beating per minute (60 seconds)?

Answer 1

To find the number of times Julie's heart was beating per minute, we need to convert the time from seconds to minutes.

Since there are 60 seconds in a minute, we can calculate the number of times her heart was beating per minute as 12 times in 60/5 = 60/5 * 12 = <<12*60/5=144>>144. Answer: \boxed{144}.