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
dimulka [17.4K]
2 years ago
9

What is a variable.

Mathematics
2 answers:
eduard2 years ago
7 0

Answer:

If you are asking about mathematics, a variable would technically be an unknown value or a placeholder for a numerical value; given the situation.

For example, if you were going to calculate the rate of speed of a car. The usual formula for that would be S = D/T (Speed = Distance / Time). If a situation or question gave us Distance & Time, you would need to find speed, right? That's correct, and what we are trying to find would be that variable.

A variable can be expressed in multiple ways: you use the letters x, v, a, s, etc. As long as it is a (singular) letter, it works as a variable.

Rainbow [258]2 years ago
5 0

Answer:

A variable is a quantity that may change within the context of a mathematical problem or experiment.

Step-by-step explanation:

You might be interested in
Here is a diagram and its corresponding equation. Find the solution to the equation.
fomenos

Answer:

The solution to the equation is:

  • <u>x = 2.5</u> or <u>x = 5/2</u>

Step-by-step explanation:

To find the solution to the equation, you only must operate the equation until you clear the x variable, with the next steps:

  • Equation: 4(x+7) = 38

And we solve:

  • 4x + 28 = 38 (we multiply 4 by x and 7)
  • 4x = 38 - 28 (we pass the +28 to subtract to the right side of the equality and operate)
  • x = 10 / 4 (we pass the 4 that is multiplying to divide to the right side of the equality)
  • <u>x = 2.5</u> (we divide)

As you can see, <u><em>the solution of the equation is </em></u><u><em>x = 2.5</em></u><u><em> or </em></u><u><em>x = 5/2</em></u>

6 0
3 years ago
Which of the following is an equation of a line parallel to 2x-y=-1?
Simora [160]

Although you didn't provide a list of options to choose from, I hope my explanation will help you  work this out with ease. :)

This equation is in a form known as "standard form." ax+by=c Standard form is commonly used, however for comparing slopes, there is a more efficient equation to use.

Point-slope form (y=mx+b) allows lines' slopes (y) and y-intercepts (b) to be quickly compared and contrasted. Let's put the equation into this form.

2x-y=-1

-2x      -2x

-y = -1 - 2x

*-1      *-1

y= 1 + 2x

Switch pieces around

y= 2x + 1

The slope is 2, the y intercept is 1.

<h2><u>Any line that rises 2 units up for every one unit right and that crosses over the vertical axis at any point other than 1 is your answer.</u></h2>

<u />

3 0
3 years ago
Whats the difference between diabetes type 1 and type 2?
Misha Larkins [42]
Type one is genetic and you are born with it. type two is acquired through an unhealthy lifestyle such as eating junk food and not exercising regularly
4 0
3 years ago
Read 2 more answers
Write a few sentences about different ways to show substraction for a problem like 32-15
alexdok [17]
An easy way (you must put the numbers in the correct side)

3 2 you cant subtract 5 from 2 so u carry one
-1 5 the 3

2 ¹3. it should look like this.Now u do 13-5=8
-1 5

2 ¹3. now u do 2-1=1
- 1 5
= 1 8

your final answer is 18.
7 0
3 years ago
A coin is tossed then a letter from the word incredible is chosen at random. What is the probability of getting heads, then a vo
Goryan [66]

Answer:

brainly.com/question/14691406

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • The function s(t) describes the motion of a particle along a line. s(t) = 14t − t2 (a) Find the velocity function v(t) of the pa
    6·1 answer
  • What is the axis of symmetry for the function: g(x) = 2x^2-5x+3​
    11·1 answer
  • Find the reciprocal.<br><br> 12
    8·2 answers
  • You have just been approved for a 30 year 6.0% fixed home mortgage. The monthly payment that you qualify for is $1112.10 .Determ
    14·1 answer
  • A California condor can have a mass of 13 kilograms. A Bee hummingbird can have a mess of 1.6 grams how many times as great as t
    10·2 answers
  • The cost of a house is 13% in one year. The original price was 75,000. Find the cost of one year later
    15·1 answer
  • Which equation represents the relationship between x and y?
    10·1 answer
  • Coupon A: off 30% of $63 shoes
    15·2 answers
  • Emily can walk 3/4 of a mile in 1/4 of an hour.
    11·1 answer
  • 3+6X2^3/3<br><br>Please explane me well 2^3 how can i do
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!