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
german
3 years ago
6

The mean of 4 8 9 x and 2x is 6 calculate the value of x

Mathematics
1 answer:
Paul [167]3 years ago
7 0

Answer:

x = 3

Step-by-step explanation:

Mathematically, the mean is the sum of the numbers divided by the count of the numbers

The count of the numbers is 5

Thus;

( 4 + 8 + 9 + x + 2x)/5 = 6

(21 + 3x)/5 = 6

21 + 3x = 6(5)

21 + 3x = 30

3x = 30-21

3x = 9

x = 9/3

x = 3

You might be interested in
What is the long division for 1. 5)65,749 2. 6)22,176 3. 5)25,931 4. 4)71,568 5. 7)98,694 6. 9)81,844
Anestetic [448]
5 65,749 13,149 R4 2. 6 22,176 3,696 R0 3. 5 25,931 5,186 R1 4. 4 71,568 17,892 R0 5. 7 98,694 14,099 R1 6. 9 81,844 9,093 R7
3 0
4 years ago
<img src="https://tex.z-dn.net/?f=77%20%5Ctimes%20100" id="TexFormula1" title="77 \times 100" alt="77 \times 100" align="absmidd
Inessa [10]
77 times 100 is 7,700. So your answer is 7,700
5 0
3 years ago
Read 2 more answers
***"
elena-s [515]

Answer:

Option B:  3(27b + 9c - 5d)

Step-by-step explanation:

The equation is actually 8lb+ 27c - 15<u>d</u>

A common factor is 3:

3(27b + 9c -5d)

Option B:  3(27b + 9c - 5d)

7 0
2 years ago
Asap math.<br><br><br><br><br><br><br> .........
Mademuasel [1]
Answer: 15

Step by step explanation:
4 0
3 years ago
What is the value of x in the equation 3x-4y=65, when y=4?
melomori [17]
X=17. I hope this helps you young sir/madam
6 0
4 years ago
Read 2 more answers
Other questions:
  • Is the function cot t positive or negative in Quadrant II?
    15·2 answers
  • 1.
    15·1 answer
  • Solve for x. x + 1/2 = 3/4 x = 1/4 x = -1/4 x = -1/2 x = 1/2
    13·2 answers
  • Solve the equation -6-6x-4x-3x
    8·2 answers
  • I’m very confused -_-
    14·1 answer
  • What will be the volume of the box?
    11·1 answer
  • Question is donw below please
    12·2 answers
  • Can someone help me plzzzzzzzzz I’m failing math rn
    8·1 answer
  • Ann needs to memorize words on a vocabulary list for Spanish class. She has 16 words to memorize, and she is one-fourth done. Ho
    15·2 answers
  • Find the interval of convergence for the series. (Enter your answer using interval notation.)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!