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
motikmotik
3 years ago
9

I really don't understand this

Mathematics
2 answers:
RoseWind [281]3 years ago
6 0

Answer:

-1

Step-by-step explanation:

The mean is the sum of all values divided by the amount of values.

We take the sum of all the numbers:

-3 + -8 + 12 + -15 + 9

-11 + 12 + -15 + 9

1 + -15 + 9

10 + -15

-5

We then divide the sum by how many number we have (we are given 5 numbers):

-5/5 = -1

Therefore, our mean is equal to -1.

Archy [21]3 years ago
4 0

Answer:

-1

Step-by-step explanation:

-3 + -8 + 12 + -15 + 9 = -5 Now divide it by the amount of numbers given. -5 / 5 = -1

You might be interested in
8/3 x 9/7 or 8/3 x 9/4<br> Which is greater? How do you know?
Vinvika [58]

Well, let's multiply them!

8/3 * 9/7 = 72/21

8/3 x 9/4 = 72/12.

We know the one with the smallest denominator is larger if the numerator is the same. So that means

72/12 is larger.

5 0
3 years ago
If You Have To Pay Someone $279 In Denominations Of $20 Or Less, What Is The Least Number Of Bills You Could Use?
Amiraneli [1.4K]
You can use 27 $10 bills which gets your at a total of $270 then you can use 1 $5 bill so now you're at $275 then you can use 4 $1 bills that gets you at your total of $279. The least number of bills you can use is 32.
5 0
3 years ago
Select the correct solution set.<br> X+17 5 -3<br> {XIX2-20)<br> {XIXS-20)<br> [xl xs 14
gtnhenbr [62]

Answer:

x≤-20

Step-by-step explanation:

x+ 17≤-3

Subtract 17 from each side

x+ 17 -17≤-3-17

x≤-20

3 0
3 years ago
What is the multiplication inverse of 1/4 A. 1.8<br> B. 1/2<br> C. 4 <br>D 8/1​
Arada [10]

The inverse of 1/4 is 4.

Choice C

5 0
3 years ago
If the perimeter is 102, how long is the longest side?
aalyn [17]
25.5
102/4=25.5

Not really sure though
8 0
3 years ago
Other questions:
  • Please I really need help on this thank you.
    12·1 answer
  • First, rewrite 13/25 and 11/20 so that they have a common denominator. Then, use &lt; , = , or &gt; to order 13/25 and 11/20 .
    14·2 answers
  • Which expression is the same as 8 ones and 72 thousandths?
    6·1 answer
  • Leon has a handful of of dimes and quarters valuing $3.40. He has 6 more dimes than he does quarters. How many of each coins doe
    14·1 answer
  • How many 1/2 inch cubes are needed to make a 1 inch cube
    5·1 answer
  • What is the constant of proportionality for the table below?​
    6·1 answer
  • Which of the following could be the numbers of left-handed and right-handed students at West Junior
    12·1 answer
  • Please help I will give brainliest
    15·1 answer
  • The table shows the cost y (in dollars) of renting x movies<br><br> Someone please awnser this
    14·1 answer
  • How do you use trigonometric ratios to solve for a missing side or angle of a right triangle?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!