help me with math please...?

Question

suppose your heart beats on average 80 beats per minute.
how many times will your heart beat in one year?
your heart beats 44 liters of blood per minute.how much blood does your heart pump with each beat?
how many beats does it take for your heart to pump 2 liters

Answer 1

you wont learn if i tell you the answer, this is an easy concept and you should learn how to do it.

first step is to find out how many minutes are in a year. so do that and then multiply that by 80. becuase its 80 per minute.

after doing that its 44 leters per minute and 80 beats per minute so..
after 80 beats u have 44 leaters.. each beat gives you __ leters

take this number and divide 2 by it

(the answer above tis is wrong dont use it.)

Answer 2

Okay, given: 80 beats per minute.
1. Answer the following:
- How many minutes are there in an hour?
- How many hours are there in a day?
- How many days are there in a year?
2. Multiply all you answers in sequence then multiply them by 80 and you have the total heartbeats per year.

Next question:
1. Divide 44 liters by 80 beats and you get the amount (in liters) per beat.
2. Divide 2 liters by your answer in No. 1 and you get the number of beats needed to pump 2 liters.

I'll show how but not the what. Think through the problem and you'll be able to solve it.

Answer 3

1. 80 x (number of minutes in an hour) x (number of hours in a day) x (number of days in a year)

and don't forget that 1/4 day.

2. number of liters it pumps per minute divided by number of beats per minutes equals number of liters per beat.

3. 2 liters divided by the answer to number 2.

Answer 4

80 x 12
44 - 56 per year. divide by 45.4 =4 = 25.254

Answer 5

Well, since we've all but answered it here anyway...

80 beats/min x 60min/hour x 24hours/day x 365 day/year = 42048000 beats/year

44L/min x 1/80 min/beat = 0.55L/beat

2L / 0.55L/beat = 3.63 beats