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
anyanavicka [17]
3 years ago
13

Find the common ratio of the geometric sequence: 12.5,−62.5,312.5,−1562.5,…

Mathematics
1 answer:
bulgar [2K]3 years ago
7 0

Answer:

-5

Step-by-step explanation:

its what you multiply by to get the next number

You might be interested in
Solve 7k+17=30<br><br> give your answer as a fraction in its simplest form
sdas [7]
7k+17=30
7k=13
k= 7/13
3 0
2 years ago
Fill in the missing spaces in the table using the given equation. Show all your work.
Levart [38]

Answer:

The answer is 0 and 2

2 and y

16 and 0

Step-by-step explanation:

7 0
3 years ago
Please help due ASAP .....
dem82 [27]

Answer:

y = 4x - 9

Step-by-step explanation:

Same slope, so they're parallel

6 0
2 years ago
Kate bought 3 used CDs and 1 used DVD at the bookstore. Her friend Joel bought 2 used CDs and 2 used DVDs at the same store. If
natka813 [3]

Answer:

Cost of 1 DVD is $6.5

Cost of one CD is $4.5

Combine cost of one DVD and CD is $11

Step-by-step explanation:

Given :

Kate bought 3 used CDs and 1 used DVD at the bookstore.

Her friend Joel bought 2 used CDs and 2 used DVDs at the same store.

Kate spent $20

Joel spent $22

To Find :  the cost of a used CD and a used DVD

Solution :

Let cost of 1 used CDs be $x

Let cost of 1 used DVDs be $y

Cost of 3 used CDs = $3x

Cost of 2 used CDs = $2x

Cost of 2 used DVDs = $2y

Kate bought 3 used CDs and 1 used DVD at the bookstore.

She spent $20

So, equation becomes :

⇒3x+y=20 ---(a)

Joel bought 2 used CDs and 2 used DVDs. she spent $22.

So, equation becomes:

⇒2x+2y=22 --(b)

Now solve (a) and (b) to determine the value of x and y

We will use substitution method

Substitute the value of x from (b) in (a)

3(\frac{22-2y}{2} )+y=20

33-3y+y=20

33-2y=20

33-20=2y

13=2y

\frac{13}{2} =y

6.5 =y

Thus cost of 1 DVD is $6.5

Now substitute this value of y in b to get value of x

⇒2x+2(6.5)=22

⇒2x+13=22

⇒2x=22-13

⇒2x=9

⇒x=\frac{9}{2}

⇒x=4.5

Thus the cost of one CD is $4.5

Hence the combine cost of one DVD and CD =  $6.5+ $4.5=$11


6 0
3 years ago
In 2-3 sentences describe how you use substitution to solve a system of linear equations?
OverLord2011 [107]
You have to use the substitution method by substituting one Y value with the other
8 0
3 years ago
Other questions:
  • What are the x- and y-intercepts of the graph of y = x2 − 10x + 21?
    8·2 answers
  • If line d intersects plane F, then how many points on line d also lie on plane F?
    14·2 answers
  • 2e - 12 = 7e + 8<br> 2e-12=7e+8
    14·1 answer
  • Andre’s apartment is 800 square feet. If he wants to carpet 40% of it, how much carpet will he need?
    13·2 answers
  • Two angles are complementary. Angle 1 has a
    5·1 answer
  • Given points B (-9,5), L (5, 13), U (8,-4), and E(-1,-6).
    8·1 answer
  • Solve the equation. <br> 4y^3 – 7y^2 + 28 = 16y
    12·1 answer
  • if your good at spreadsheets, text me on appswhats , "appwhats" is the other way around but Brainly forbids me typing it. text m
    12·1 answer
  • What is the mean and median of the following data set
    12·2 answers
  • In this unit, you’re working with a variety of methods for solving quadratic equations. Which method do you prefer over the othe
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!