What is dependent variable of c=40n+180

It depends, lets use an example to explain this. Let's say *c* is the number of miles you've driven in a vehicle, And let's say *n* is the amount of fuel your vehicle uses in milliliters(ml). So the independent variable is *n*, and the dependent variable is *c*, since the amount of fuel used depends on the distance you've traveled in miles. now if u want to do some math's... the equation given is c=40n+180 so to solve for *c* we have to input any value for *n* example: n=1, c=(40*1)+180 c=220 n=2, c=(40*2)+180 c=260 to solve for *n*... rearrange the equation... *c=40n+180* -180(from both sides) now... *c-180=40n* /40(both sides) ...(c/40)+(180/40)=n input values for *c* into the new equation c=1, n=(1/40)+(180/40) n=0.025+4.5 n=4.525 c=2, n=(2/40)+(180/40) n=0.05+4.5 n=4.55

If you have to graph on coordinate planes with variables, what would your operation be

What are you trying to ask? Operation usually relate to add/subtract/multiply/divide or other way to relate two things, a coordinate plane has x and y as the axes and a wide variety of functions (as well as non-functions) can be graphed on this plane. The shape of the graph often helps determine what type of function/non-function it is.

Main content

Pre-algebra

Course: Pre-algebra > Unit 7

Lesson 8: Dependent and independent variables

Dependent and independent variables review

Google Classroom

Identify dependent and independent variables and apply them to contexts.

Independent variable

An independent variable is a variable that represents a quantity that is being manipulated in an experiment.

x

is often the variable used to represent the independent variable in an equation.

Example:

You are doing chores to earn your allowance. For each chore you do, you earn

$ 3

What is the independent variable?

The independent variable is the amount of chores you do because this is the variable you have control over.

Dependent variables

A dependent variable represents a quantity whose value depends on how the independent variable is manipulated.

y

is often the variable used to represent the dependent variable in an equation.

Example:

Let's use the same context.

You are doing chores to earn your allowance. For each chore you do, you earn

$ 3

What is the dependent variable?

The dependent variable is the amount of money you earn because the amount of money you earn depends on how many chores you do.

Want to learn more about independent and dependent variables? Check out this video.

Practice

Problem 1

You are buying boxes of cookies at a bakery. Each box of cookies costs

$ 4

Which of the following statements are true?

(Choice A)
The dependent variable is the number of boxes of cookies you buy.
(Choice B)
The independent variable is the number of boxes of cookies you buy.
(Choice C)
The dependent variable is the amount of money you spend on the cookies.
(Choice D)
The independent variable is the amount of money you spend on the cookies.

Want to try more problems like this? Check out this exercise.

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carolyn onischuk
Posted 5 years ago. Direct link to carolyn onischuk's post “What is dependent variabl...”
What is dependent variable of c=40n+180
Button navigates to signup pageComment on carolyn onischuk's post “What is dependent variabl...”
(19 votes)
Answer
- Banana bomb
  Posted 4 years ago. Direct link to Banana bomb's post “It depends, lets use an e...”
  It depends, lets use an example to explain this.
  
  Let's say c is the number of miles you've driven in a vehicle,
  And let's say n is the amount of fuel your vehicle uses in milliliters(ml).
  
  So the independent variable is n,
  and the dependent variable is c,
  
  since the amount of fuel used depends on the distance you've traveled in miles.
  
  now if u want to do some math's...
  the equation given is c=40n+180
  
  so to solve for c we have to input any value for n
  
  example:
  
  n=1, c=(40*1)+180 c=220
  n=2, c=(40*2)+180 c=260
  
  to solve for n...
  rearrange the equation...
  c=40n+180
  -180(from both sides)
  now... c-180=40n
  /40(both sides)
  ...(c/40)+(180/40)=n
  
  input values for c into the new equation
  
  c=1, n=(1/40)+(180/40) n=0.025+4.5 n=4.525
  c=2, n=(2/40)+(180/40) n=0.05+4.5 n=4.55
  Comment on Banana bomb's post “It depends, lets use an e...”
  (17 votes)
SethBooy
Posted 4 months ago. Direct link to SethBooy's post “why is the question in ki...”
why is the question in kilometres but the answers are in miles?
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(13 votes)
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RyanA
Posted 8 months ago. Direct link to RyanA's post “too much knowledge to fit...”
too much knowledge to fit in my brain
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(7 votes)
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rmidgett149
Posted 9 months ago. Direct link to rmidgett149's post “This is a bit confusing b...”
This is a bit confusing but i will try to understand it
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(6 votes)
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- Ilovepigs
  Posted a month ago. Direct link to Ilovepigs's post “basically the dependent v...”
  basically the dependent variable is the number that changes based on what you change the independent variable to, and the independent variable is the number that you are changing on purpose.
  Comment on Ilovepigs's post “basically the dependent v...”
  (1 vote)
SKELETOR
Posted 3 months ago. Direct link to SKELETOR's post “5 hours is required but w...”
5 hours is required but what about the tests we may have not completed?

Please vote and I will vote for you
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(5 votes)
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LizzyS
Posted 6 years ago. Direct link to LizzyS's post “Why will dependent and in...”
Why will dependent and independent variables help me when i'm out of school and college?
What will it do for me?
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(6 votes)
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- nicolasl56
  Posted 10 months ago. Direct link to nicolasl56's post “If you follow a digrie of...”
  If you follow a digrie of science, it will help you in your experiments.
  Comment on nicolasl56's post “If you follow a digrie of...”
  (0 votes)
nickyfd12
Posted 5 years ago. Direct link to nickyfd12's post “identify the variable bei...”
identify the variable being described by following measurement 25m,5m/s,87min,11mi,67 m/s2,8.9s, 3.2km/hr,4.5mi/hr2,2 hr, 5.3km help me plsss! thank youuuu
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(4 votes)
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Julianna
Posted 2 years ago. Direct link to Julianna's post “I get both of them confus...”
I get both of them confused. How do I tell the differences of Dependent and Independent variables?
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(3 votes)
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Abdulmateen Zakariyya
Posted 7 months ago. Direct link to Abdulmateen Zakariyya's post “A gumball machine contain...”
A gumball machine contains 23 green gumballs 52 red gumballs 34 blue gumballs 61 yellow gumballs and 30 pink gumballs .what percentage of the gumball are red?
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HenryH
Posted 8 months ago. Direct link to HenryH's post “If you have to graph on c...”
If you have to graph on coordinate planes with variables, what would your operation be
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(2 votes)
Answer
- David Severin
  Posted 8 months ago. Direct link to David Severin's post “What are you trying to as...”
  What are you trying to ask? Operation usually relate to add/subtract/multiply/divide or other way to relate two things, a coordinate plane has x and y as the axes and a wide variety of functions (as well as non-functions) can be graphed on this plane. The shape of the graph often helps determine what type of function/non-function it is.
  Button navigates to signup page
  (2 votes)