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Dmitriy789 [7]
3 years ago
13

1/2+6 over 3 = x-3 over 2

Mathematics
1 answer:
Amanda [17]3 years ago
8 0

Answer:

x = 7 1/3

Step-by-step explanation:

First, add 1/2 and 6

1/2 + 12/2 = 13/2 = 6 1/2

Our equation now:

13/2 over 3 - x - 3 over 2 = 0

Next, divide 13/2 by 3

13/2 divided by 3 = 13/6

Our equation now:

13/6 over 3 - (x - 3) over 2 = 0

Now, find common denominators and simplify

13/6 - ((x - 3) times 3) over 6 = 0

22 - 3x over 6 = 0

Multiply by six on both sides

22 - 3x = 0

Subtract 22 from both sides

-3x = -22

Divide by -1

3x = 22

Divide both sides of the equation by 3

x = 22/3

x = 7 1/3

Hope this helps!

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One sample has a mean of and a second sample has a mean of . The two samples are combined into a single set of scores. What is t
Murrr4er [49]

Answer:

a) For this case we can use the definition of weighted average given by:

M = \frac{ \bar X_1 n_1 + \bar X_2 n_2}{n_1 +n_2}

And if we replace the values given we have:

M = \frac{8*4 + 16*4}{4+4}= 12

b) M = \frac{8*3 + 16*5}{3+5}= 13

c) M = \frac{8*5 + 16*3}{5+3}= 11

Step-by-step explanation:

Assuming the following question: "One sample has a mean of M=8 and a second sample has a mean of M=16 . The two samples are combined into a single set of scores.

a) What is the mean for the combined set if both of the original samples have n=4 scores "

For this case we can use the definition of weighted average given by:

M = \frac{ \bar X_1 n_1 + \bar X_2 n_2}{n_1 +n_2}

And if we replace the values given we have:

M = \frac{8*4 + 16*4}{4+4}= 12

b) what is the mean for the combined set if the first sample has n=3 and the second sample has n=5

Using the definition we have:

M = \frac{8*3 + 16*5}{3+5}= 13

c) what is the mean for the combined set if the first sample has n=5 and the second sample has n=3

Using the definition we have:

M = \frac{8*5 + 16*3}{5+3}= 11

7 0
3 years ago
Help me out please simple
const2013 [10]

<u>A straight line is 180 degrees in measure</u>

<u>The straight line is made up of three angles</u>

           --> angle 1

           --> angle 2

           --> angle with a little square on it

                     (<em>angle with a little square means it is 90 degrees in measure)</em>

<u>Let's set up an equation</u>

    angle1 + angle2 + 90 = 180\\angle1 + 87 + 90 = 180\\angle1 = 3

Thus angle 1 is <u>3 degrees</u> or the <u>second choice</u>

<u></u>

Hope that helps!

5 0
3 years ago
Yolanda has finished 45 percent of her homework and she has finished 27 problems. How many problems was Yolanda assigned
masya89 [10]
If 45 percent of the homework is only 27 problems, she needs to figure out this:

What is 47 percent of 60?
              or
47% x 60

Which is 27. 

So, Yolanda was assigned 60 problems.


6 0
3 years ago
N kmjknxcizfdhzkjxfsbvdnkjbchsgnfdb,mfvs cfnbgsuhkjfcbm
kifflom [539]

Answer:

huh thanks for the points ig :)

Step-by-step explanation:

8 0
3 years ago
Which binomial could be rewritten as a difference of two squares?
dybincka [34]
The answer is freaking A
6 0
3 years ago
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