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
oksano4ka [1.4K]
3 years ago
6

The mean of 10 values is 19. If further 5 values are

Mathematics
1 answer:
Leokris [45]3 years ago
3 0

Answer:

22

Step-by-step explanation:

Pretend the 10 values in the first sentence are a,b,c,d,e,f,g,h,i,j

Pretend the addition 5 values is k,l,m,n,o

So the mean of all the 15 data is (a+b+c+d+e+f+g+h+i+j+k+l+m+n+o)/15=20

So the sum of all 15 data is  a+b+c+d+e+f+g+h+i+j+k+l+m+n+o=300                since 15(20)=300

Now let's look at the first 10:  We have their mean so we can write:

(a+b+c+d+e+f+g+h+i+j)/10=19

so a+b+c+d+e+f+g+h+i+j=190                               since 10(19)=190

So that means using our first sum equation and our equation sum equation we have

190+k+l+m+n+o=300

      k+l+m+n+o=300-190

      k+l+m+n+o= 110

So the average of those 5 numbers mentioned in your problem is 110/5=22

You might be interested in
Function 1 is defined by the equation p= --3/2r - 5. function 2 is defined by the following table. Which function has a greater
Rus_ich [418]
0-5. Here’s your answer
6 0
2 years ago
Simplify<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%5Cfrac%7B3%7D%7B8%7D%20%7D%20" id="TexFormula1" title=" \sqrt{ \f
Pie

Answer:

B (√6)/4

Step-by-step explanation:

The smallest multiplier that will make the denominator of the fraction into a perfect square is 2, so you have ...

\displaystyle\sqrt{\frac{3}{8}}=\sqrt{\frac{3\cdot 2}{8\cdot 2}}\\\\=\sqrt{\frac{6}{16}}=\frac{\sqrt{6}}{\sqrt{16}}\\\\=\frac{\sqrt{6}}{4}

_____

Answer choice D is also a correct rationalization of the denominator, but is not simplified as far as it can be. √24 = 2√6, so a factor of 2 can be cancelled from numerator and denominator, giving answer choice B.

3 0
3 years ago
Simplify -1/4m + 5/6 +3/8m - 2/3 <br><br><br><br><br> HURRYYY PLEASE !!!!
sukhopar [10]

3/8 m - 1/4 m + 5/6 - 2/3

3/8 m - 2/8 m + 5/6 - 4/6

<u>1/8 m</u><u> + </u><u>1/6</u>

4 0
3 years ago
ILL GIVE BRAINLIEST AND THANKS HELP
Elanso [62]

Answer:

iIm sorry dont report but i do not understand what im answering, but ill take the points thank you

7 0
3 years ago
Plz help............................
Natasha2012 [34]
1.) Factor 9u^2-12u
\frac{3u(3u-4)}{3u}

2.) Cancel any common factors (in bold will be the terms eliminated)
\frac{3u(3u-4)}{3u}

Final answer is: 3u-4

Therefore, the answer is C. 3u-4


5 0
3 years ago
Other questions:
  • Question
    5·1 answer
  • Help!!!which of the following best describes the algebraic expression 10x+2
    13·2 answers
  • Brandon is on one side of a river that is 50 m wide and wants to reach a point 200 m downstream on the opposite side as quickly
    5·2 answers
  • The cut out part on the right side is "the tree"​
    14·1 answer
  • Helpppppppppppppppppppppppppppppp
    15·1 answer
  • If you were needing to a quarter (1/4) a recipe that has a yield of 24, how many would you now have?
    15·1 answer
  • Which equation describes the asymptote of the exponential function represented by this graph?
    8·2 answers
  • What is the value of this expression? (37)^0 0 3^7 1 30^7
    13·2 answers
  • Whats the MIDPOINT of (2, 4) and (1, -3)
    13·2 answers
  • PLEASE help me <br> this is a 45°-45°-90° triangle. <br> solve for a.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!