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
mihalych1998 [28]
3 years ago
10

To increase the mean of 4 numbers by 2. by how much would the sum of the 4 numbers have to increase?

Mathematics
1 answer:
Orlov [11]3 years ago
4 0
So mean also translates to average so
the mean of 4 numbers is aprox
x=average
(x+x+x+x)/4=average
to increase x by 2 you add 2
x+2=average
(x+2+x+2+x+2+x+2)=4=(4x+8)/4=x+2

you would have to increase the sum/total by 8 to make the numbers' averages' go up by 2
You might be interested in
18 is 240% of what? basic percent equation ...?
pshichka [43]
18 = (240/100) x what;
what = 18 x (100/240);
what = 1800/240;
what = 7.5;
6 0
2 years ago
Read 2 more answers
2/7> b+5/7 what is “B”
Masteriza [31]

Answer:

-3/7 > b

Step-by-step explanation:

2/7> b+5/7

Subtract 5/7 from each side

2/7-5/7> b+5/7-5/7

-3/7 > b

7 0
3 years ago
Gary is buying a $1,250 computer on the installment plan you makes a down payment on of $150 she has to make monthly payments of
Nataliya [291]
1250-150=1100
2 1/2 years = 30 months
30*48.25 = 1447.5 - 1100 = $<span>347.5 is you Answer</span>
3 0
3 years ago
Read 2 more answers
In each situation, write a recurrence relation, including base case(s), for the given function. briefly explain in words why thi
vova2212 [387]
A thumb-wrestling match requires two thumbs, so we can either suppose that we need at least two people (n\ge2), or allow one to thumb-wrestle one's self. In either case, we'd have t(1)=t(2)=1, so let's just say we need a minimum of two players.

If we add one more person to the set of players, then the first two people would need to play 1 additional match each. So t(3)=t(2)+2.

If we add one more person, then the first three people would again each have to play 1 more match with the new person. So t(4)=t(3)+3.

And so on, so that in general, the number of games needed for everyone to play exactly one match with everyone else is given recursively by

\begin{cases}t(2)=1\\t(n+1)=t(n)+n&\text{for }n\ge2\end{cases}
6 0
3 years ago
What is the solution for this inequality? -10x ≤ 40
HACTEHA [7]

Answer:

-4

Step-by-step explanation:

Because -10 ÷ 40 = -4 so it's like a simple division problem

3 0
3 years ago
Read 2 more answers
Other questions:
  • maria rolls a regular number cube with sides labeled 1 through 6 a total of 45 times. The number 4 is rolled 12 times. What is t
    10·1 answer
  • What are the equivalent fractions to 20/24
    7·1 answer
  • Find the vector of length 2 making an angle of 45^\circ with the x-axis. round to 6 decimals places or give an exact answer in t
    15·1 answer
  • I NEED HELP DESPERATELY!! GIVE AN EXPLANATION!!
    12·2 answers
  • Write 7.263 to 1 decimal place​
    7·2 answers
  • a survey was given to people who owned a certain type of car. What percent of the people surveyed were completely satisfied with
    14·1 answer
  • If t\4 +t =15 what is t​
    11·1 answer
  • P=7r+3q <br> r= 5 and q= -4
    10·1 answer
  • Wolt<br>Nisha<br>IIamy<br>World ​
    5·2 answers
  • (17^4)^6 <br><br> urgent please help?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!