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
Mrac [35]
3 years ago
12

The mean of the numbers 22,18,(2y+1),10 and 20 is 15. find the median.​

Mathematics
1 answer:
andrezito [222]3 years ago
4 0

Answer:

Median is 18

Step-by-step explanation:

Firstly you have to fine y by using your mean

Therefore, 22+18+(2y+1)+10+20 divide it by the number of the mean that is the sum of the number divide by the total number of the mean which is 5 =15

22+18+2y+1+10+20 over 5 =15

71+y over 5 =15

Cross multiple

71+y=75

y=4

22,18,9,10, 20

Rearrange

9,10,18,20,22

The median is 18

Pls mark answer as brainliest

You might be interested in
Choose the slope-intercept equation of the line that passes through the point (4, -6) and is parallel to y = - 1/2 x + 5. (3 poi
telo118 [61]
First, it is important to understand that parallel lines have the same slope. Therefore, based on the formula y=mx+b in which m represents slope and based on the equation y=-1/2x+5, the slope of the unknown line is also -1/2. Then, there are two different ways to solve this problem using different formulas.

The first method to find the unknown equation is easy but not widely known. We can use the point slope formula which is (y-y1)=m(x-x1) in which we can plug a point and slope to find the equation. When we plug in the values given, we get y+6=-1/2(x-4) or y+6 =-1/2x+2 which simplifies to y=-1/2x-4.

The other method is using the slope intercept form or y=mx+b. When we plug in our slope and our point, we get -6=-1/2*4+b or -6=-2+b so b must equal -4, therefore we have all the information we need to plug values into y=mx+b. When we plug in our slope and y-intercept, we get y=-1/2x-4 which is the answer.

I hope this helps!
7 0
3 years ago
In Scarlett's grade, 1/5 of the students have a sister. Of the students who have a sister, 1/4 also have a brother. What fractio
My name is Ann [436]

Answer:

1/20

Step-by-step explanation:

In Scarlette grade 1/5 of the students have a sister.

Of the students who have a sister 1/4 also have a brother

Therefore fraction if students in Scarlet's grade who had both brothers and sister can be calculated as follows

= 1/5 ×1/4

= 1/20

3 0
3 years ago
A flat rectangular piece of aluminum has a perimeter of 62 inches. The length is 15
dexar [7]

Answer:

Width of rectangular piece = x = 8 inches

Step-by-step explanation:

Perimeter of rectangular piece = 62 inches

Let width of rectangular piece= x

and length of rectangular piece = x+15

We need to find width i.e value of x

The formula used for perimeter of rectangle is: Perimeter=2(Length+Width)\\

Putting values in formula and finding Width:

Perimeter=2(Length+Width)\\\\62=2(x+x+15)\\62=2(2x+15)\\62=4x+30\\62-30=4x\\4x=32\\x=\frac{32}{4}\\x=8

After solving we get value of x = 8

So, Width of rectangular piece = x = 8 inches

5 0
3 years ago
The total cost of hiring Paul the plumber is a function of the card number of hours needed to complete the repair. Paul charges
nasty-shy [4]

Answer:

A y = 40x + 75

B 1 hour = 115

2 hour = 155

3 hour = 195

4 hour = 235

5 hour = 275

6 hour = 315

C, D, E look at pic below

plz mark brainliest

3 0
3 years ago
A) find the exiting water's average velocity and total rate of flow.
LenaWriter [7]
I would choose a hope this helps
3 0
3 years ago
Other questions:
  • Find the measure of angle x in the figure below:<br> to
    7·2 answers
  • Solve for x.
    14·1 answer
  • 6/10 - 1/5= Pls help
    10·2 answers
  • Please answer this question fast in two minutes
    11·1 answer
  • Write x2 - 8x + 13 = 0 in the form (x - a)2 = b, where a and b are integers. a.)(x - 4)2 = 3 b.) (x - 3)2 = 2 c.)(x - 2)2 = 1 d.
    12·1 answer
  • Someone plz help me
    11·2 answers
  • Help please I really need help
    11·1 answer
  • A right triangle has legs that measure 8 feet and 6 feet. What is the length of the hypotenuse?
    11·1 answer
  • 1.what is definition and
    13·1 answer
  • 9. A park manager claims the profit P for a concession stand depends on the number of visitors V, and that
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!