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
Sergio039 [100]
3 years ago
12

The mean of four numbers is 85. The four numbers are 86, 83, 81, and .

Mathematics
1 answer:
kati45 [8]3 years ago
5 0

Answer:

90

Step-by-step explanation:

a)

Since, to find the average of a set of numbers, you need to add them all together and divide by the amount of numbers:

\dfrac{86+83+81+x}{4}=85

b)

Multiply both sides by 4:

86+83+81+x=340\\x=90

Hope this helps!

You might be interested in
Help me please. Thank you.
Mandarinka [93]
I could be wrong but from what I’ve learned..
In order to find the measure of
8 0
3 years ago
Read 2 more answers
Two consecutive odd integers have a sum of 44. Find the integers.
ivanzaharov [21]

Step-by-step explanation:

Answer

Let2odintegers

(2n+1),(2n+3)

→(2n+1)+(2n+3)=44

⇒4n+4=44

⇒4n=40

⇒n=10

then,integerare

2n+1=21

2n+3=23

7 0
3 years ago
PLEASE HELP ASAP
vovikov84 [41]

Answer:

Third option

Step-by-step explanation:

x^{2}-10x+25=0 is the correct answer. 100% sure

7 0
3 years ago
Read 2 more answers
The circumference of a circle is 31.4 inches. Enter the radius of the circle, in inches. Round your answer to the nearest whole
Masteriza [31]

Answer:

Should be 5 in.

Step-by-step explanation:

C=2*Pi*R

31.4=2*3.14*R

substitute 5 for radius= 2*5=10

10*3.14=31.4

3 0
3 years ago
If 6 spring roll serve 3 people how many people will 1 roll serve
Pavlova-9 [17]

Answer:

1/2 person

Step-by-step explanation:

We can use a ratio to solve

6 rolls          1 roll

------------  = -------------

3 people      x people

Using cross products

6x =3

Divide each side by 6

6x/6 = 3/6

x = 1/2

1 roll will solve 1/2 person

7 0
4 years ago
Other questions:
  • Christine is currently taking a college astronomy class and the instructor often gives quizzes. On the past seven quizzes, Chris
    14·2 answers
  • Help me plz??? For all of it it's do today in a few
    15·1 answer
  • The gas gauge in Craig's car looks like this. What fraction of the gas tank is filled?
    5·1 answer
  • Please do questions 17,21, and 22
    9·2 answers
  • Please help! I don't know what to do :
    11·2 answers
  • Where should you endorse a check?
    15·2 answers
  • Can someone please answer this worksheet for me. I would be really thankful if you do so. ​
    9·1 answer
  • Jackson buys a grape snow cone on a hot day. By the time he eats all the "snow" off the top, the paper cone is filled with 27 pi
    14·1 answer
  • PLEASE HELP
    11·2 answers
  • If you want coffe join<br> https://pad let.com/reesetillema/vlczk4fckrjfep21
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!