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
levacccp [35]
4 years ago
6

How to find the mean of a data set with a missing value?

Mathematics
1 answer:
kotykmax [81]4 years ago
5 0
<span>If you are given a mean and asked for one of the data values, you can still use the basic method for determining the mean, but work backwards. Generally we add up all the values and then divide by the number of values. In this case, working backwards, we multiply by the number of values (instead of dividing) and then subtract (instead of adding). You should be left with a data value from the set. </span>
You might be interested in
What would y equal for this isosceles triangle
dsp73

Answer:

y would be equal to 27

step by step explanation:

4 0
3 years ago
Read 2 more answers
Is this graph a function?
inysia [295]
Sur it's a function because for each x value corresponds one and only one y value.

Another easy way to determine if y is a function is to apply the vertical test:

If you draw a vertical line and this lines intersects the graph in one point, then y is a function

8 0
3 years ago
Could you help me and answer a couple questions for me?
kari74 [83]

Answer:

I think no. <em>D</em> is the answer

5 0
3 years ago
Solve for x.4(2x + 3) = 3x + 3 + 2x
ElenaW [278]

Answer:

The value of x is -3.

Explanation:

Given the equation:

4\mleft(2x+3\mright)=3x+3+2x​

Step 1: Distribute 4 in the left-hand side.

\begin{gathered} 4\mleft(2x)+4(3\mright)=3x+3+2x​ \\ 8x+12=3x+2x​+3 \\ 8x+12=5x​+3 \end{gathered}

Step 2: Collect like terms.

\begin{gathered} 8x-5x=3-12 \\ 3x=-9 \end{gathered}

Step 3: Divide both sides by 3.

\begin{gathered} \frac{3x}{3}=-\frac{9}{3} \\ x=-3 \end{gathered}

The value of x is -3.

3 0
1 year ago
Tom and Becky can paint Jim's fence together in 12 hours. If all people paint at the same rate, how many hours would it take to
Delvig [45]

Answer: 8 hours

Step-by-step explanation:

Let x be the time taken by each person to paint the fence.

Given: Tom and Becky can paint Jim's fence together in 12 hours.

Since all people paint at the same rate, then we have the following equation ;-

\dfrac{1}{x}+\dfrac{1}{x}=\dfrac{1}{12}\\\\\Rightarrow\ \dfrac{2}{x}=\dfrac{1}{12}\\\\\Rightarrow\ x=24

Thus, the time taken by each person to paint the fence alone = 24 hours

Now, the time taken by all three paint together:-

\dfrac{1}{t}=\dfrac{1}{24}+\dfrac{1}{24}+\dfrac{1}{24}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{3}{24}\\\\\Rightarrow\ t=\dfrac{24}{3}=8\text{ hours}

Hence, it would take 8 hours if all three paint together.

3 0
3 years ago
Other questions:
  • You start an account with $500 and an interest rate of 6% compounded yearly. How much is in the account after 3 years?
    9·1 answer
  • Simplify the expression. x2 + x - 6 /x2 - 4 · x2 - 9/ x2 + 6x + 9
    14·1 answer
  • Find the vertex of the function given below y=x^2-2x+1
    15·1 answer
  • Solve the equation. Round to the nearest hundredth. Show work.
    6·1 answer
  • Which integer is less than -3 .. ( 4 ) ( -3 ) ( 3 ) ( -4 ) ?
    8·2 answers
  • What is 2 1/2 divided by 2 1/6
    7·1 answer
  • HELP FOR NUMBER 16 THROUGH 19 QUICKLY PLEASE
    15·2 answers
  • I missed my math class yesterday and im not sure what to do here. Please help
    9·2 answers
  • Mrs. Mack teaches three art classes, and there are 30 students in each class. She has a supply
    8·1 answer
  • 12a^2*b^4-36a^2*b+44abc
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!