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
masya89 [10]
3 years ago
8

What is the next number? 2 7 8 3 12 9

Mathematics
1 answer:
Oxana [17]3 years ago
3 0
Answer : 10 or 13
I hope this helped and feel free to pm me!
You might be interested in
HELP<br>match the function with its inverse​
Gre4nikov [31]

Answer:

1st row 3 down

Step-by-step explanation:

7 0
2 years ago
Consider the equality xy k. Write the following inverse proportion: y is inversely proportional to x. When y = 12, x=5.​
skelet666 [1.2K]

Answer:

y=\dfrac {60} {x}   or   xy=60   (depending on your teacher's format preference)

Step-by-step explanation:

<h3><u>Proportionality background</u></h3>

Proportionality is sometimes called "variation".   (ex. " 'y' varies inversely as 'x' ")

There are two main types of proportionality/variation:

  1. Direct
  2. Inverse.

Every proportionality, regardless of whether it is direct or inverse, will have a constant of proportionality (I'm going to call it "k").

Below are several different examples of both types of proportionality, and how they might be stated in words:

  • y=kx      y is directly proportional to x
  • y=kx^2     y is directly proportional to x squared
  • y=kx^3     y is directly proportional to x cubed
  • y=k\sqrt{x}}   y is directly proportional to the square root of x
  • y=\dfrac {k} {x}   y is inversely proportional to x
  • y=\dfrac {k} {x^2}   y is inversely proportional to x squared

From these examples, we see that two things:

  • things that are <u>directly proportional</u> -- the thing is <u>multipli</u>ed to the constant of proportionality "k"
  • things that are <u>inversely proportional</u> -- the thing is <u>divide</u>d from the constant of proportionality "k".

<h3><u>Looking at our question</u></h3>

In our question, y is inversely proportional to x, so the equation we're looking at is the following y=\dfrac {k} {x}.

It isn't yet clear what the constant of proportionality "k" is for this situation, but we are given enough information to solve for it:  "When y=12, x=5."

We can substitute this known relationship pair, and find the "k" that relates this pair of numbers:

<h3><u>Solving for k, and finding the general equation</u></h3>

General Inverse variation equation...

y=\dfrac {k} {x}

Substituting known values...

(12)=\dfrac {k} {(5)}

Multiplying both sides by 5...

(12)*5= \left ( \dfrac {k} {5} \right ) *5

Simplifying/arithmetic...

60=k

So, for our situation, k=60.  So the inverse proportionality relationship equation for this situation is y=\dfrac {60} {x}.

The way your question is phrased, they may prefer the form: xy=60

7 0
2 years ago
What is another fraction for 2/6?
Whitepunk [10]

Answer:

1/3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Mr. Toshio lent out 11 rulers at the beginning of class, collected 4 rulers in the middle of class, and gave out 7 at the end of
Drupady [299]
Mr. Toshio had 32 rulers. 32-11 = 21 rulers. 21+4 = 25 rulers. and 25-7 = 18 rulers
8 0
3 years ago
Read 2 more answers
What percent of 12 is 24
jeka57 [31]

Answer:

200%

Step-by-step explanation:

12 as a whole would be 100%. if you wanted to get to 24 (which would be double) you'd need to double the percentage! hope this helps

6 0
2 years ago
Other questions:
  • Is it possible for a 5 digit number to be rounded to a 6 digit number
    12·2 answers
  • Carey needs $45 to buy her mother a gift. She has saved 22% of that amount so far. How much more money does she need?
    6·2 answers
  • what is the similarity ratio of the smaller to the larger similar cylinders? enter your answer as a:b​
    5·1 answer
  • What are the area and perimeter of square BCDE
    11·1 answer
  • Whats -1.55 as a fraction
    12·2 answers
  • A model of a famous statue is 1 1/2 inches tall. The actual statues is 3 3/4 feet tall. What is the ratio of the height of the m
    13·1 answer
  • Solve the following system of equations:<br> x + y = -4<br> -x + y = 6
    6·1 answer
  • How to find the area
    5·1 answer
  • I Need Answer Immediately!!!!!!!
    10·1 answer
  • The solution to 5x = 55 is<br><br><br> x = 11<br><br><br> x = 50
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!