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
yaroslaw [1]
3 years ago
5

The average of m, n, and -1 is 0. What is the value of m+n?

Mathematics
1 answer:
Oxana [17]3 years ago
5 0

Answer: 1

==========================

Explanation:

To average a bunch of numbers, we add them up and divide by how many numbers there are. In this case, we'll divide by 3 since there are 3 numbers.

Add up the values: m+n+(-1) = m+n-1

Divide by 3: (m+n-1)/3

Set this equal to 0 since we're told the average is 0: (m+n-1)/3 = 0

Now let's isolate m+n. It might help to replace "m+n" with another variable, say P to get (P-1)/3 = 0.

Solve for P

(P-1)/3 = 0

P-1 = 3*0 .... multiply both sides by 3

P-1 = 0

P = 1 ... add 1 to both sides

m+n = 1 .... replace P with m+n

So that's why the answer is 1

You might be interested in
Factor each expression.<br> 8.) 8 + 16=
sveta [45]

Answer:

24

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Christina describes her shape. She says it has 3 equal sides that are each 4 centimeters in length. It has no right angles. Do u
Salsk061 [2.6K]


draw an equilateral triangle that has a side length of all 4cm


4 0
3 years ago
Read 2 more answers
PLEASE HELP!!!! NEED THE ANSWER FAST! WILL MARK BRAINLIEST! The regular price of a cell phone is $179. If you buy the phone at a
kondor19780726 [428]

Answer:

35.80

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the variable in the expression: 25 + 5z - 3?
Alekssandra [29.7K]

Answer:

The variable is z

Step-by-step explanation:

8 0
3 years ago
Find the slope of each line.<br> 1) y=− x−5<br> 2) y=− x−1
poizon [28]

1) slope = -1

2) slope = -1

5 0
3 years ago
Other questions:
  • Legend has it that a bull sasquatch in rut will howl approximately 9 times per hour when it is 40°f outside and only 5 times per
    8·1 answer
  • Find the minimum value of the function for the polygonal convex set determined by the given system of inequalities.
    15·1 answer
  • A bicyclist rides 1/5 mile in 1/65 hour. Write this rate as a unit rate
    13·2 answers
  • What is the length of the hypotenuse of the triangle below?<br>​
    13·1 answer
  • Which of the following statements is true?
    11·1 answer
  • What is the probability that a randomly selected student has a cell phone and is from School B?
    9·2 answers
  • What is the inverse operation that will isolate the variable X-4=-2
    12·1 answer
  • Please help me with this look at image
    9·2 answers
  • the scale given on a road map is 1 cm equal 120 km what is the actual distance represented by 6 cm on the map​
    5·1 answer
  • Josefina's check at Sun Bistro is $26.70. In order to leave a 24% tip, how much should she pay? Round to the nearest cent.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!