If the heart of an elephant at rest will beat an average 1380 beats in 60 min, what is the rate in beats per minute?

1 Answer
May 28, 2018

Answer:

See a solution process below:

Explanation:

We can use this ratio equation to find the solution to the problem:

#b/(1"min") = (1380"beats")/(60"min")#

#color(red)("min") xx b/(1"min") = color(red)("min") xx (1380"beats")/(60"min")#

#cancel(color(red)("min")) xx b/(1color(red)(cancel(color(black)("min")))) = cancel(color(red)("min")) xx (1380"beats")/(60color(red)(cancel(color(black)("min"))))#

#b/1 = (1380"beats")/60#

#b = ((60 * 23)"beats")/60#

#b = ((color(red)(cancel(color(black)(60))) * 23)"beats")/color(red)(cancel(color(black)(60)))#

#b = 23# beats