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
7nadin3 [17]
3 years ago
7

What is a median i need help

Mathematics
1 answer:
Sonja [21]3 years ago
8 0
Median is the middle number of a data. To find median, you have to list the numbers in numerical order and find the middle number.
You might be interested in
An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number
vovikov84 [41]

Answer:

The number of key rings sold on a particular day when the total profit is $5,000 is 4,000 rings.

Step-by-step explanation:

The question is incomplete.

<em>An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number of key rings is given by </em>

<em />P=n^2-2n-3<em />

<em>where n is the number of key rings in thousands.</em>

<em>Find the number of key rings sold on a particular day when the total profit is $5,000.</em>

<em />

We have the profit defined by a quadratic function.

We have to calculate n, for which the profit is $5,000.

P=n^2-2n-3=5\\\\n^2-2n-8=0

We have to calculate the roots of the polynomial we use the quadratic equation:

n=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\n= \frac{-2\pm\sqrt{4-4*1*(-8)}}{2}= \frac{-2\pm\sqrt{4-32}}{2} = \frac{-2\pm\sqrt{36}}{2} =\frac{-2\pm6}{2} \\\\n_1=(-2-6)/2=-8/2=-4\\\\n_2=(-2+6)/2=4/2=2

n1 is not valid, as the amount of rings sold can not be negative.

Then, the solution is n=4 or 4,000 rings sold.

7 0
3 years ago
Slips of paper are numbered 1 through 10. If one slip is drawn and replaced 40 times, how many times should the slip with number
Masja [62]

Hey there!

We have 10 pieces of paper. The probability of drawing a 10 is 1/10.  Therefore, if we were to draw ten times, the ten should probably be drawn once. If we multiplied our number of drawings by four (10*4=40), our outcome of seeing our slip with the ten should also quadruple and become four times. (1*4=4)

I hope that this helps! Have an awesome day!

6 0
3 years ago
A survey showed that 4 out of 5 students own a bicycle. Based on this result, how many of the 800 students in a school own a bic
Stella [2.4K]

Answer:

640 students own a bicycle

Step-by-step explanation:

The rate shows that 4 out of 5 students own a bicycle. 4 out of 5 is 80% of the students. Now, we need to find 80% of 800 students.

To do this, we multiply the number of students by .80, which represents 80%.

800 x 0.8 = 640

I Hope That This Helps! :)

4 0
3 years ago
Read 2 more answers
75 students in a kindergarten. 40% of them can read. how many can read?
Paul [167]

Answer:

30

Step-by-step explanation:

75 times .40 = 30

8 0
3 years ago
Read 2 more answers
What is 1/5n equals 15
rosijanka [135]

Answer: n=75

Step-by-step explanation:

1/5 times 75 equals to 15

4 0
3 years ago
Other questions:
  • Segment  BD segment BD is a perpendicular bisector of segment AC segment AC . AD=5x+8AD=5x+8 and DC=43DC=43 .
    15·1 answer
  • Samples of size n = 600 are taken from a telephone survey, and the mean age is taken for each sample. What is the distribution o
    6·1 answer
  • Chooseeeeeeeeeeeeeeeee oneeeeeeee plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz and explain ​
    8·1 answer
  • What vertex does the quadrilateral and the pentagon share?
    7·2 answers
  • Casey wants to determine whether the rate at which melted glass cools affects the strength of the glass. He pours melted glass i
    13·1 answer
  • Complete the equation describing how x and y are related
    13·1 answer
  • 15 is what percentage of 30
    6·2 answers
  • Someone help me with this math problem​
    13·1 answer
  • Use the figure for 10 - 12. X is the midpoint of PQ.<br>10: Find PX <br>11. Find XQ<br> 12. Find PQ​
    12·2 answers
  • Write an equation for a line that passes through the points (0,-4) and (1,3)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!