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viktelen [127]
4 years ago
8

13. question in attachment

Mathematics
2 answers:
blagie [28]4 years ago
7 0

Answer:

19

Step-by-step explanation:

The mean is the sum of all the value divided by the number of values.  Set up an expression to match the statement.

\frac{10 + 12 + x +9+18+14+20+23+25+10}{10}=16\\ 10+12+x+9+18+14+20+23+25+10=160\\141+x = 160\\x=19

Mandarinka [93]4 years ago
6 0

Answer:

Step-by-step explanation:

First put it in equation form

\frac{(10+12+x+9+18+14+20+23+25+10)}{10} = 16

Add up all the numbers in the brackets

\frac{(141+x)}{10} = 16

Solve for x

141+x = 16 *10\\141+x=160\\x=160-141\\x=19

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The sum of 1/6, 2/3, and 1/4 is
zimovet [89]
1/6+2/3+1/4 
First find the highest common multiple of the denominators=12
Then multiply each term by the quotient of 12/denominator
So...it becomes 2/12+8/12+3/12
Add all the numerators and keep the denominator constant
It becomes (2+8+3)/12=13/12
                                 =1 1/12

5 0
3 years ago
Read 2 more answers
If your right I’ll mark brainiest
lbvjy [14]

Answer:

i dont know, ive never learned this haha. i sat here for at least 45-50 minutes trying to figure it out. sorry :/

Step-by-step explanation:

8 0
3 years ago
Hi I need to find DO length ​
MakcuM [25]

Answer:

10 cm

Step-by-step explanation:

If we assume that DC is parallel to AB, then triangle DOC is similar to triangle AOB.

However, even with this assumption, there is not enough information in the diagram to solve for DO.  We would also need to know the length of CO.  Then we could write a proportion:

DO / (DO + 20) = CO / (CO + 24)

Edit: OD is 2 cm shorter than OC.  If we call x the length of OD, then the length of OC is x+2.

Putting this into our proportion:

x / (x + 20) = (x + 2) / (x + 2 + 24)

x / (x + 20) = (x + 2) / (x + 26)

Cross multiply:

x (x + 26) = (x + 2) (x + 20)

Distribute:

x² + 26x = x² + 20x + 2x + 40

x² + 26x = x² + 22x + 40

4x = 40

x = 10

So the length of DO is 10 cm.

4 0
3 years ago
A-[2b+{c-(2a+b}] <br><br><br><br> Solve this please
natta225 [31]

Answer:

3a - b - c

Step-by-step explanation:

a - 2b - (c-(2a+b))

a - 2b - c + (2a+b)

3a - b - c

3 0
3 years ago
Read 2 more answers
Please help me in this one
ANEK [815]
The best choices are table 1.

All the input values are being multiplied by themselves by the output values.

This creates a congruent and linear correlation and congruence. 

I hope this helps!

Brainliest answer is always appreciated!
8 0
4 years ago
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