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mote1985 [20]
3 years ago
11

The mean of three numbers is 8 two of the numbers are 6 and 11 work out the third number

Mathematics
1 answer:
Andreas93 [3]3 years ago
4 0

Answer:

7

Step-by-step explanation:

To find the number, first multiply 8 by 3, since that is how you find the mean.

8 x 3 = 24 (total)

x + 6 + 11 = 24

x = 24 - 6 - 11

x = 7

Inverse:

7 + 6 + 11 = 24

Mean = 24/3 = 8

Hope this helps!

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I need help ASAP pls! In ΔDEF, the sum of the measures of ∠D and ∠E is 120 degrees. The sum of the measures of ∠E and ∠F is 160
Free_Kalibri [48]

Answer:

sum is 180 degrees i hope this helps

Step-by-step explanation:

5 0
3 years ago
Solve the following proportion 9/x = 3/12<br><br> A. 36<br> B. 6<br> C. 24
GaryK [48]

Answer:

A

Step-by-step explanation:

\frac{9}{x}=\frac{3}{12}\\\\

Cross multiply,

9*12 = x*3

\frac{9*12}{3}=x

x = 3*12

x = 36

3 0
3 years ago
Help me and explain
yan [13]

TOTAL IS $10


If the party costs $5 and each additional person is $1 and she invites 5 more 5 X 1 = 5


OR 1 + 1 + 1 + 1 + 1

4 0
3 years ago
Help ASAP please!!!<br> First answer and correct answer gets the brain...
elena-14-01-66 [18.8K]
3/4(x) + 3= 5/6

3/4(x) + 3-3= 5/6-3

3/4(x)= 5/6-3/1

3/4(x)= 5/6 - 18/6

3/4(x)= -13/6


3/4(x) × 4/3 = -13/6 x 4/3

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4 0
3 years ago
Solve the formula for the indicated variable. k=g-d/c for g
Murrr4er [49]
Just like any other variable, we complete the same process

k = g -  \frac{d}{c}  \\ k  +  \frac{d}{c}  = g \\  \frac{kc + d}{c} = g \\
Now we can test it, let's say k=4, d=6, and c=2, let's find the value of g
4 = g -  \frac{6}{2} \\ 4  +  3 = g \\ 7= g

OR

\frac{kc + d}{c} = g \\   \\  \frac{(4 \times 2) + (6)}{(2)} = g \\  \frac{14}{2}  = g \\ g = 7

8 0
3 years ago
Read 2 more answers
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