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
Lisa [10]
3 years ago
13

The mean of the data is 18. What number is missing? 21,11,_,27,22,13,16

Mathematics
1 answer:
Ludmilka [50]3 years ago
3 0

The missing number is 16

<em><u>Solution:</u></em>

Given that mean of data is 18

Let "x" be the missing number

The data set is:

21, 11, x , 27, 22, 13, 16

Sum of data set = 21 + 11 + x + 27 + 22 + 13 + 16

Sum of data set = 110 + x

<em><u>The mean is given by formula:</u></em>

Mean = \frac{\text{sum of all numbers}}{\text{total numbers in data set}}

Substituting the values we get,

18 = \frac{110+x}{7}\\\\126 = 110 + x\\\\x = 126 - 110\\\\x = 16

Thus the missing number is 16

You might be interested in
Help which is the point slope
Advocard [28]
Its the second one

Point slope formula is:
Y - (y1) = m ( x - (x1) )

M is the slope so -5/7

( 6 is (x1) , 2 is (y1) )

Y-2=-5/7(x-6)
4 0
2 years ago
Al and Bill each have two bullets. They fire alternately at a glass bottle. Al has hitting probability 1/3 and Bill 1/4. What is
enot [183]
P(Al hits bottle first time) = 1/3
P(Al misses the first shot but hits on his second shot) =  
P( Al misses and bill misses and Al hits) = 2/3 * 3/4 * 1/3 = 1/6

So required probability = 1/3 + 1/6 =  1/2
8 0
3 years ago
Examples of how to reduce friction.
kkurt [141]

Answer:

the to objects go in the Same direction


Step-by-step explanation:


7 0
3 years ago
-91÷13= <br><br>-3/7÷9/4=<br><br>-12÷-0.03=
Cloud [144]

Answer:

-7

-4/21

400

Because 13 times 7 is 91..so -7

-3/7÷9/4 becomes -3/7×4/9. Taking LCM and solving gives -4/21.

last is easy.it becomes (12÷3)×100=400

4 0
3 years ago
Pls answer quickly before 3:30
stellarik [79]
Lol good luck buddy lololololololol
5 0
3 years ago
Other questions:
  • Which of the following sets contains all roots of the polynomial f(x)=2x^3+3x^2-3x-2?
    10·1 answer
  • Let A be a finite, non-empty subset of R. Prove that A has a maximum and a minimum. (Recall that a maximum of a set A is an uppe
    9·1 answer
  • Ryan works at at the donut shop where he makes $10.25 per hour . He also works part time at the school bookstore where he makes
    11·1 answer
  • Sam works 5 days a week for 8 hours each day.He earns $8.00 per hour .How much money will he earn after 3 weeks?
    14·1 answer
  • Solve the equation for x.<br><br> -6x + 8x = -46<br> A) -23 <br> B) 3.2 <br> C) 12 <br> D) 16
    10·2 answers
  • A clothing store at the mall receives a shipment of 312 sweaters. The shipment comes in 12 boxes with the same number of sweater
    11·2 answers
  • The circumference is about ___ m <br><br>use 3.14 for pi.​
    10·2 answers
  • I want to know how to get this factored and simplified the easiest way. I know that I can multiply out and then factor but that
    6·1 answer
  • Find the zero of the function f (x) = -2x +2.
    5·1 answer
  • The yearly profits of a company is $52,000. The profits have been decreasing by 2.75% per year. What
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!