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
vichka [17]
3 years ago
7

A person's heart beats 200 times in 3 minutes. How many times will it beat in an hour (remember...60 minutes in an hour) ?​

Mathematics
2 answers:
Andre45 [30]3 years ago
7 0

Answer:  4000 beats per hour

Step-by-step explanation:

<u>200 beats </u>     X   <u> 60 minutes</u>    

3 minutes               1 hour

The term 'minutes' cancel out therefore you are left with beats per hour

<u>200 x 60</u>       =    <u>12000</u>    =  4000 beats per hour

      3                         3

andreev551 [17]3 years ago
6 0

200 times / 3 minutes = x times / 60 minutes

3x = 12000

x = 4000 times in an hour

A person's heart will beat 4000 times in an hour.

Hope this helps!! :)

You might be interested in
Please someone help?
Sati [7]

Answer:

C

Step-by-step explanation:

C is congruent to A

3 0
3 years ago
What is the expectation for a binomial distribution with p = 0.5 and n = 8?
Natasha2012 [34]

Answer: 4

Step-by-step explanation:

Given the following :

P = probability of success = 0.5

n = number of trials = 8

The expected value of a binomial distribution with probability of success P and number of trials n is defined by:

E(n, p) = n * p

Therefore, expected value when P = 0.5 and n = 8

E(8, 0.5) = 8 × 0.5

= 4

The expected value of the binomial distribution is 4

8 0
3 years ago
Calculate the length of a triangle if another length is 15 feet and the hypotenuse is 39 feet.
Y_Kistochka [10]
We have to use Pythagorean theorem that says : 

a^2+b^2=c^2\\\Rightarrow a^2+15^2=39^2\\a^2=39^2-15^2\\a=\sqrt{1296}\\a=36

The missing length of the triangle is : 36 feet
3 0
3 years ago
A store donated 2 1/4 cases of crayons to a daycare center. Each case holds 24 boxes of crayons; each box holds 8 crayons. How m
Westkost [7]

Answer:

432 crayons

Step-by-step explanation:

convert 2 1/4 to 9/4

1 case=24 boxes=8 crayon in each box

24*8=192 for 1 case

9/4*192=432

The center received 432 crayons  

5 0
3 years ago
Laurie buys four bags of candy with 10 pieces of candy in each bag. Her father then gives her 5 more pieces of candy. Laurie wan
Alborosie
Your Question:
<span>Laurie buys four bags of candy with 10 pieces of candy in each bag. Her father then gives her 5 more pieces of candy. Laurie wants to give as much of her candy as she can to each of her six friends, and she wants to make sure they each get an equal number of pieces. How many pieces will be left over, if any, after Laurie gives her friends the candy?
My Answer:
If Laurie has four bags with ten pieces in each bag, and if her father gives her five more pieces,  she would have forty-five pieces and if she has six friends and wants to share it equally with six friends. Each friend would get 7 pieces.
My Work:
<span>45 ÷ 6 = 7.5 
</span>Hope I helped
♥ James.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Write an equation in point slope form that passes through the given points
    12·1 answer
  • What is the radius of a circle in which a 30° arc is 2 inches long?
    9·2 answers
  • Help pleaseee.<br> .....
    14·2 answers
  • How many solutions does this quadratic equation have ? y=x^2-8x-20
    10·1 answer
  • 2 step equations that equal 18
    13·1 answer
  • The equation of line one is 3x – 2y = 5. The equation of line two is x + 2y = 7. What is the point
    9·2 answers
  • What is the change of elevation between 8,500 m and -300m
    15·1 answer
  • Find the area of the composite figure:
    7·2 answers
  • Helpppppp no one answered this for me plsss help will give brainliest plssss​
    5·2 answers
  • What does 0.2 in the highlighted cell mean?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!