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
Ostrovityanka [42]
3 years ago
13

Find the value of y if the mean is 22 and 18 ( 2y+1), 10 and 20 is 15​

Mathematics
1 answer:
Igoryamba3 years ago
8 0

Answer:

2

Step-by-step explanation:

Mean = sum of data/sample size

Sum of data = 22 + 18 + 2y+1 + 10 + 20

Sample size = 5

Mean = 15

Substitute

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

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

75 = 70+2y+1

2y = 75-71

2y = 4

y = 4/2

y = 2

Hence the value of y is 2

You might be interested in
What is the equation of the line that passes through the point (2,-2) and has a<br> slope of -1/2?
katrin2010 [14]

Answer:

y = -1/2x - 1

Step-by-step explanation:

We can use the point-slope form of the equation:

y-y1 = m(x-x1)

Where the given y1 = -2, x1 = 2, and m = -1/2. This yields:

y - (-2) = -1/2(x - 2)

y + 2 = -1/2x + 1

y = -1/2x +1 - 2

y = -1/2x - 1

3 0
3 years ago
If $560 is sheared in the ratio 2:3:9 , the difference between the largest and the smallest shares is
Lesechka [4]

Answer:

The difference between the largest and the smallest shares is $280

Step-by-step explanation:

Total amount to be shared = $560

Ratios of share are 2:3:9 => Total of 14 equal portions

To get one portion, $560 / 14 = $40

First share is 2, therefore $40 x 2 =        $80 (smallest share)

Second share is 3, therefore $40 x 3 = $120

Third share is 9, therefore $40 x 9 =    $360 (largest share)

                                            <u>TOTAL =     $560</u>

The difference between the largest and the smallest = $360 - $80

                                                                                        = $280

7 0
3 years ago
7x + 3 = 10x - 5.4<br><br> will mark brainliest u do not have to show work
Tanya [424]
X=3x-2.4 because if you substract from one side you have to do it to the other
4 0
3 years ago
Read 2 more answers
Pls answer correctly thank you
Marat540 [252]
Top left 127
top middle 57
top right 118

bottom left 30
bottom middle 65
bottom right 36
4 0
3 years ago
Which solid figure has one polygon base
Dahasolnce [82]

Answer:

the answer your looking for is a pyramid

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • How many yards a football team moves on a field using this expression |8| + |-4|
    12·1 answer
  • 14+6 :)) ILL GIVE BRAINLIEST ITS 100 POINTS :))
    11·1 answer
  • The sum eighty two dollars to spend on seven books after buying them she had twelve dollars how much did each book cost
    13·1 answer
  • Aunt Maggie’s car broke down on Interstate 10. Sam’s Towing charges a $57 hook up fee and $2.00 per mile towed. Regina’s Towing
    8·1 answer
  • Can someone please help me?!!? I don't know how to do this and I need help right now
    12·1 answer
  • You have to be 60 inches tall to ride the roller coaster. How many feet tall is this?
    15·2 answers
  • Given that 3x – tan y = 4, what is dy/dx in terms of y?
    5·1 answer
  • What is the measure of A
    11·1 answer
  • How to write a relative frequency
    7·2 answers
  • Pls help thanks, i’ll give brainliest if you give me a correct answer
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!