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
aivan3 [116]
3 years ago
6

Given the set of numbers (3, 5, 7, 11, 23), what number must be added to the set so that the median of the 6 numbers is 9? what

number must be added to the set so that the mean of the 6 numbers is 9?
Mathematics
1 answer:
Gennadij [26K]3 years ago
7 0
Easy

median is the number in the middle when they are arranged in increasing numerical order
example
1,2,3
median is 2 becaus it is in middle
1,4,6,7,8
6 is median

if you have an even amount then average the middle two
1,3,5,7
median is the mean of 3 and 5 which is 4

so

3,5,7,11,23
median is 7 right now
there are an odd amout of numbers
adding 1 will result in even
to find the median of even set of numbers, average the 2 middle ones
right now 7 is center
the mean of 5 and 7 is 6
the mean of 7 and 11 is 9
we want a mean of 9
so add any  number greater than or equal to 11
3,5,7,11,12,23 is one option
3,5,7,11,23,50 is another



mean is 9
mean is the average of them
x is the number to be added
6 numbers will be the set since there are 5 now and adding 1 will get 6
(3+5+7+11+23+x)/6=9
(49+x)/6=9
times both sides by 6
49+x=54
minus 49 both sides
x=5

the number added must be 5



to make the median of the 6 numbers 9, add any number greater than or equal to 11, such as 12 or 234

to make the mean 9, add 5 to the set
You might be interested in
The spinner shown is divided into congruent sections that are labeled from 1 through 7. If the spinner is spun one time, what is
adoni [48]

Answer:

3/7

Step-by-step explanation:

The number of possible results are;

1, 2 , 3 , 4 , 5, 6 , 7 = 7

odd numbers here are;

1, 3 , 5 and 7

non-odd numbers are 2, 4 and 6

So the section not labeled with an odd number is 3

Hence the probability here is that;

3/7

4 0
3 years ago
Read 2 more answers
Use scientific notation to determine the answer :
vampirchik [111]
A= 1.5 × 10^10




Hope that helps
3 0
3 years ago
Find the ratio of 500 paise to rs.20​
docker41 [41]

We know that 100paise=1 rupee

=>500 paise = 5 rs

ratio =5/20=1/4=1:4

hope it helps :)

plz mark as brainliest

5 0
3 years ago
What is the measurement for this angle?
adelina 88 [10]

Answer:

B

Step-by-step explanation:

150 degrees

3 0
3 years ago
Cindy wants to buy flooring and baseboards for her office. She needs to know how much to buy. What are the Area and Perimeter of
myrzilka [38]

Answer:

the question is not complete pls complete the question even though the formulas are lxb for rectangles area and SxS for squares area

6 0
3 years ago
Other questions:
  • Which of the following is a composite number? 61 , 13 , 63 , 31
    7·1 answer
  • a fruit company delivers its fruit in two types of boxes: large and small. A delivery of 3 large boxes and 2 small boxes has a t
    12·2 answers
  • Will mark Brainliest for correct answer!!! Write two different expressions to represent the perimeter of this square. What can y
    11·2 answers
  • 72.5 m long x 28.5 m wide. The club needs to replace the protective padding on the barrier. The protective padding is sold in 3
    6·1 answer
  • 15 - 8 = 4 x 7 What operation would you do first in this expression? 4x7 15-8 8:4​
    15·1 answer
  • A tree grows at a rate of 4 feet per year. Which graph has a slope that best represents this rate?
    7·1 answer
  • 2x2 + 6x - 20 = 0<br> factor
    14·2 answers
  • 1. Dolores is on a bridge that is 42 feet above a lake. What is the distance from Dolores to the boat? G​
    14·1 answer
  • Justin uses 2/3
    8·1 answer
  • ASAP!! DUE TOMORROW!<br><br> 8522/2<br><br> (SHOW UR WORK!,!)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!