If an average persons heart beats at 103,630 times a day, and a day equals 24 hours, along with the fact that a minute consists of 60 minutes our equations can be:
103,630/(24*60)
To solve the equation we would first start with 24*60 which equals 1440. Then divide 103,630 by that number. Which would equal 71 time per minute.
If one-sixth of a certain number is four more than one-twelfth the number, the required number will be 48.
Let the unknown number be 'a'
One-sixth of the number is expressed as 1/6 a ..... 1
One-twelfth the number is also expressed as 1/12 a
Four more than one-twelfth the number will be written as:
1/12 a + 4 .... 2
Equating 1 and 2 will give:
1/6 a = 1/12 a + 4
a/6 = a/12 + 4
Collect the like terms

Find the LCM

Cross multiply
a = 12×4
a = 48
This shows that the required number is 48
Learn more on equations here: brainly.com/question/14034270
Answer:
the answer is essentially d