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
shepuryov [24]
3 years ago
12

The median of the data set is 18 what number is missing 12, 17, 21, 13, 25

Mathematics
2 answers:
zysi [14]3 years ago
8 0
You need 19 because the median would be the middle of 17 and 19 which would be 18
denis-greek [22]3 years ago
5 0

Answer:

The missing number in the data set is 19

Step-by-step explanation:

The data set is given to be : 12, 17, 21, 13, 25

The median of the data set is given to is 18

Now, to find the median first arrange the data set in the increasing order

So, The data set would be : 12, 13, 17, 21, 25

Now, let the missing number be x

So, The total number of terms in the data set will be 6 that is even.

Now, insert the missing number in between

⇒ The data set will become : 12, 13, 17, x, 21, 25

Now, Median = Mean of 3rd and 4th term

⇒ 18 = Mean of 17 and x

⇒ 18 × 2 = x + 17

⇒ x = 19

Therefore, The missing number in the data set is 19

You might be interested in
V=1/3πh^2 (3r-h) solve for r
stellarik [79]
R=1v+h([pi]h^2) all over 3
5 0
2 years ago
Complete the pattern and find the rule 87,91,95,99,___,___, ___
IrinaVladis [17]
The rule is +4 
how did you find it you can 87-91=4
so that is your rule +4
8 0
3 years ago
Read 2 more answers
It takes 3 hours to paddle a kayak 12 miles downstream and 4 hours for the return trip upstream. Find the rate of the kayak in s
Furkat [3]

The rate of the kayak in still water is 3.5 mph

<h3><u>Solution:</u></h3>

Given that It takes 3 hours to paddle a kayak 12 miles downstream

Distance covered in downstream = 12 miles

Time taken to cover downstream = 3 hours

Also given that it takes 4 hours for the return trip upstream

Distance covered in upstream = 12 miles

Time taken to cover upstream = 4 hours

<em><u>Formula to remember:</u></em>

If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then: Speed downstream = (u + v) km/hr and Speed upstream = (u - v) km/hr

Let the speed of Kayak in still water = x mph

And The speed of current = y mph

For downstream:

Speed downstream = x + y

We know that speed = \frac{distance}{time}

\frac{distance}{time} = x + y

x + y = \frac{12}{3}

x + y = 4  ------ eqn 1

<em><u>For upstream:</u></em>

Speed upstream = x - y

\frac{12}{4} = x - y

x - y = 3 -------- eqn 2

Now let us eqn 1 and eqn 2

Add eqn 1 and eqn 2

x + y + x - y = 4 + 3

2x = 7

x = 3.5

speed of Kayak in still water = x mph  = 3.5 mph

6 0
3 years ago
What is the surface area of the figure shown above
gtnhenbr [62]

Answer:

  230 cm^2

Step-by-step explanation:

The area of each parallelogram face is ...

  A = bh = (8 cm)(3 cm) = 24 cm^2

The area of the two rectangular faces shown is ...

  A = (area of top face) + (area of right side face)

  A = (8 cm)(7 cm) +(5 cm)(7 cm) = 91 cm^2

The three faces we have figured the area of are half the total area, since there are three more faces exactly the same size. Then the total area of the figure is ...

  total surface area = 2(24 cm^2 +91 cm^2) = 230 cm^2

_____

Of course, the area of a rectangle is given by A=L·W, where L and W represent the length and width of the rectangle.

7 0
3 years ago
What are the factors of the square root of 329
Andru [333]

Answer: x=-\dfrac{3}{2}, 7

Step-by-step explanation:

2x^2-10x-26=x-5

2x^2-10x-26-x+5=0  Move all terms to one side

2x^2-11x-21=0 Simplify 2{x}^{2}-10x-26-x+5

2x^2+3x-14x-21=0 Split the second term

x(2x+3)-7(2x+3)=0  Factor out common terms in the first two terms, then in the last two terms.

(2x+3)(x-7)=0 Factor out the common term 2x+3

x=-\dfrac{3}{2}, 7

5 0
2 years ago
Read 2 more answers
Other questions:
  • f a stadium has 50,000 seats, how many concert tickets would have to be sold for the event to be 85% sold out?
    9·1 answer
  • Use signed numbers to solve.
    6·1 answer
  • The programmers at the Theater Channel need to select a live musical to introduce their new network. The five choices are Cabare
    6·1 answer
  • Find y prime if arctan(xy) = 1 + (x^2*y)
    13·1 answer
  • An electronics store offers students a discount
    5·1 answer
  • If you flip a coin and roll a 6-sided die, what is the probability that you will flip a heads and roll a 5?
    6·2 answers
  • Pleasee help this is due today I'll give brainliest
    14·1 answer
  • A lab student measures the mass of a piece of lead to be 13.87 g. She then places the????? help 74-12x=? help!!!!!!!!!!!!!!!!!!!
    6·1 answer
  • Find the slope and the y-intercept of the line. y = -5/4 x + 2 slope: ?? y-intercept: ??​
    12·1 answer
  • 3ab<br> 1. monomial<br> 2. binomial<br> 3. trinomial<br> 4. none of these
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!