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
Daniel [21]
2 years ago
12

The mean of 14 numbers is 49. Removing one of the numbers causes the mean to decrease to 43. What number was removed?

Mathematics
1 answer:
Mademuasel [1]2 years ago
4 0

Answer:

126 was removed.

Step-by-step explanation:

The total before division took place was

Total = mean * 14

mean = 49

Total = 49 * 14

Total = 685

Now you subtract x from the total

685 - x

And divide by 13 [one number is missing]

(685 - x)/13

and the result = 43

(685 - x ) / 13 = 43                Multiply both sides by 13

685 - x  = 43 * 13

685 - x = 559                       Subtract 685 from both sides

- x = - 126                             Multiply by - 1

x = 126

You might be interested in
Jason has 1/3 of a gallon of milk .
prisoha [69]
1/3 * 1/4
1/12

Hope this helps
4 0
2 years ago
Read 2 more answers
Kofi and kweku are two brothers. Kofi is older than kweku. Given that kofi's age is (5x-4) years and kweku's age is (2x+1) years
diamong [38]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the details :

Kofi is older than kweku

kofi's age = (5x-4) years

kweku's age = (2x+1) years

a. write down an expression, interns of x,for how much old is Kofi than kweku

Equate the ages of Kofi and kweku

(5x - 4) = (2x + 1)

5x - 4 = 2x + 1

5x - 2x = 1 + 4

3x = 5

3x - 5

B.) if Kofi is tens years older than kweku, find the value of x and the ages of Kofi and kweku

Then,

(5x-4) = (2x + 1) + 10

5x - 4 = 2x + 1 + 10

5x - 2x = 1 + 10 + 4

3x = 15

x = 5

Kofi's age : 5x - 4

5(5) - 4 = 25 - 4 = 21 years

Kweku's age : (2x + 1)

2(5) + 1 = 10 + 1 = 11 years

6 0
2 years ago
ILL GIVE U BRAINLIEST RIGHT ANSWERS ONLY Which statement is true?
Studentka2010 [4]

Answer:

A.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Select an operation to make the equation true.
MrRa [10]
Add. I’m not sure because there is a - besides the 15.

Explanation - 12 + 15 = 27.

Hopefully this helps. Have a blessed one. God loves you. ☺️
3 0
2 years ago
select all the faces of the right rectangle that have the same shape and dimensions as the cross section shown
Paul [167]
Where’s the picture?
3 0
3 years ago
Read 2 more answers
Other questions:
  • .77 times 136.9 for dividing decimal worksheet thx!
    14·1 answer
  • Answer and explanation please?? #6
    6·2 answers
  • Rewrite the equation 2x + 3y = 6 in slope-intercept form. y = -2 x + 6 y = - x + 2 y = 2 x + 6 3 y = -2 x + 6
    15·1 answer
  • What is 0.98 0.27 and0.34 from greatest to least
    13·1 answer
  • A line passes through the point (-10,5) and has a slope of -3/2. Write an equation in slope-intercept form for this line.
    10·1 answer
  • HELPPPP FASTTTTTT PLZZZ
    12·1 answer
  • Plz help, this is for a quiz, <br><br> 32 + (5 − 2) ⋅ 4 − 6 over 3
    12·2 answers
  • Please answer the question.
    11·1 answer
  • What value of x makes this equation true -6x+3= 45
    15·2 answers
  • -2x-6y=8 and -6x-6y=0
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!