[tex]\dfrac{65\,beats}{min}\cdot\dfrac{60\,min}{1\,h}\cdot\dfrac{24\,h}{1\,day}=\dfrac{65\cdot 60\cdot 24\,beats}{day}\\\\=\bf{93600\,\dfrac{beats}{day}}[/tex]
Given: Your heart beats 65 times in one minute. There are 60 minutes in one hour and 24 hours in a day.
Use the given information to set up your equation (let the variable be x):
1) Find out how many minutes there are in a day through a proportion equation:
60 minutes = 1 hour
x minutes = 24 hours
Multiply 60 by 24 and divide it by 1 to find out how many minutes are in 24 hours (1 day). The answer will give you 1440 minutes.
2) Set up another proportion equation to find out how many times your heart beats in a day.
65 times = 1 minute
x times = 1440 minutes
Remember that 1440 minutes = 24 hours = 1 day. So, multiply 65 by 1440 and divide it by 1 to find out how many times your heart beats in a day.
Answer = Your heart beats 93,600 times a day.
There are different ways to do this problem; this is just one way!
