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
a_sh-v [17]
2 years ago
12

Suppose you have a data set that includes the values 20, 30, and 50. If you add a fourth value to this data set, and after doing

that the mean of the data set is 50, what was the value that you added? a. -10 c. 50 b. 40 d. 100 Please select the best answer from the choices provided A B C D
Mathematics
1 answer:
olya-2409 [2.1K]2 years ago
8 0

Answer:

D. 100

Step-by-step explanation:

Mean = Sum of all numbers divided by the count of all numbers

Mean = 50

Let say that the sum of all numbers = X

50 = X / 4

200 = X

X = (20+30+50) + The 4th Value

200 = 100 + 4th Value

The 4th Value = 100

You might be interested in
Which property is illustrated by the equation 3 (m n) = (3 m) n?
Sav [38]
Associative property
8 0
3 years ago
Read 2 more answers
two buses leave a station at the same time and travel in opposite directions. One bus travels 15 km/h faster than the other. If
Marina CMI [18]

The speed of slower bus is 118 km/hr and speed of faster bus is 133 km/hr

<h3>What is speed?</h3>

Speed is a scalar quantity that refers to "how fast an object is moving".

Given that, two buses leave a station at the same time and travel in opposite directions, one bus travels 15 km/h faster than the other, the two buses are 1004 kilometres apart after 4 hours,

Speed = distance/ time

Let the speed of the slower bus be v and the faster bus be (v+15)

According to the question,

vt + (v+15)t = 1004

vt + vt + 15t = 1004

t = 4

4v + 4v + 60 = 1004

8v = 944

v = 118

Hence, The speed of slower bus is 118 km/hr and speed of faster bus is 133 km/hr

For more references on speed, click;

brainly.com/question/7359669

#SPJ1

8 0
1 year ago
Togo flew his ultralight plane to a landing field 30 miles away. With the wind, the flight took 3/5 hours. Returning against the
konstantin123 [22]

Answer:

Step-by-step explanation:

answer is W = 7 and A = 43.

8 0
3 years ago
If f(x) = 4(3x - 5), find f^-1(x)
Sloan [31]

Answer:

The answer is A.

Step-by-step explanation:

Lets call f(x)=y, so y= 4*(3*x-5), we want to find 'x', using 'y' as a the variable.

y=12x-20\\ y+20=12x\\ x=\frac{y+20}{12}

Now lets change the name of 'y' to 'x', and 'x' to f^-1(x).

f-1(x) = (x+20)/12

3 0
3 years ago
Part A<br> How can you determine whether JKL = PQR?<br><br> Part B<br> Is JKL = PQR
kotegsom [21]

Answer:

JKL = PQR and JKL = PQR

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Please Help! I have 2 questions,
    7·1 answer
  • The excluded values of a rational expression are 2 and 5. Which of the following could be this expression?
    6·2 answers
  • Sequence A: 5, 7, 9, 11
    8·1 answer
  • A portion of a line or Ray that extends from one point to another point is called what
    15·2 answers
  • Write the equation in logarithmic form<br>4^6=4096​
    7·1 answer
  • Help will mark brainliest
    7·2 answers
  • A whole number rounded to the nearest ten thousand is 620,000. What is the least possible value for that number?
    14·1 answer
  • Put them in order from least to greatest:<br> 3.26 3.201 3.363 3.34 3.275 3.2
    5·1 answer
  • 23. The table shows the five most populated countries in the
    14·1 answer
  • HELP PLEASE I NEED HELP
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!