1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lera25 [3.4K]
2 years ago
7

Does anyone know the answer to this ?? PLEASE HELP.

Mathematics
1 answer:
aleksandrvk [35]2 years ago
5 0

Answer:

<u>2,365,200,000 times</u>

Step-by-step explanation:

<u>Given</u> :

  • Average heartbeat rate = 60 times/minute
  • Avg. human lifespan = 75 years

<u>To Find</u> :

  • Number of heartbeats in lifetime of 75 years

<u>Solving</u> :

  • Let the number we require be n
  • n = average heartbeat rate x 60 x 24 x 365 x 75
  • n = 60 x 60 x 24 x 365 x 75
  • n = 3600 x 24 x 365 x 75
  • n = 86400 x 365 x 75
  • n = 31536000 x 75
  • n = <u>2,365,200,000 times</u>
You might be interested in
12 – 2x= -2(y – x)<br> -2x = -2(y – x) – 12<br> x= (y - x) + 6
Vilka [71]

Answer:

x=o and y= -6

Step-by-step explanation:

12-2x = - 2(y-x)

or,12-2x = -2y + 2x

or, 12 = - 2y + 4x

or, 12/2= 2x - y

or, 2x - y = 6

• 2x -6= y.....eqn_1

-2x=-2y+2x -12

or,4x +2y= -12

or,4x + 2(2x-6)= -12

or, 4x+4x-12=-12

or, 8x= 0

• x= o

putting the value of x in eqn...3

o=(y-0)+6

or, o= y + 6

•y = -6

5 0
3 years ago
7(n+4) ....................
Juli2301 [7.4K]

Answer:

<h2>7n + 28</h2>

Step-by-step explanation:

7(n + 4)

Expand

7 \times n = 7n \\ 7 \times 4 = 28 \\  \\ 7n + 28

4 0
3 years ago
I'll give brainliest!! Also 40 points!
ki77a [65]

Well, if you have a word problem for example:

Maria has 24 backpacks and 12 textbooks. She needs to fit all the books in the backpacks evenly. How will she do that?

So you could do 24 ÷ 12 = 2 textbooks per backpack OR

Add 12 together until you get to 24, 12 + 12 = 24

So all you need to do is show your work and how you solved both solutions to any type of problem. (Hope this was helpful!)

5 0
3 years ago
Use the graph to find the cost of 8 shirts,
sleet_krkn [62]
The anwser is b because it is 150 dollars
4 0
3 years ago
Please help 10 pts given
Alina [70]

Answer:

6.50 per mile

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Please answer both I’ll mark you brilliant !
    14·1 answer
  • a rectangular table is two times as long as it is wide. if the area is 18ft^2, find the length and the width of the table.
    14·1 answer
  • GIVING BRAINLIEST!!! A student observes a beaker of room temperature water resting on a table. She states that the beaker of wat
    6·1 answer
  • How many more marmosets are there than mandrills?
    10·1 answer
  • Which of the following proves trinagle ABC =~ trinagle DEF? Please help me step-by-step with this please, and if you give just a
    11·1 answer
  • Someone please please help please please help me please ASAP ASAP please ASAP thank you so much please help me with my work
    13·1 answer
  • HELP <br> Please don’t answer if you don’t know it.
    12·2 answers
  • Georgie put $500 in her savings account, earning interest at a rate of 4% each year. She did not make any more deposits or withd
    9·1 answer
  • PLZ HELP CORRECT ANSWER WILL GET BRAINLIEST
    10·2 answers
  • Sarah is selling water bottles at a football game for $2.25 each . She spent $36.75 to purchase the water bottles, ice, and cool
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!