Application of linear equations, Mathematics

Assignment Help:

Application of Linear Equations

We are going to talk about applications to linear equations.  Or, put in other terms, now we will start looking at story problems or word problems. 

Process for Working Story/Word Problems

1.   READ THE PROBLEM.

2.   READ THE PROBLEM AGAIN.  Okay, this might be a little bit of overkill here.

Though, the point of these first two steps is that you have to read the problem. This step is the most important step, however it is also the step that most people don't do correctly.

You need to carefully read the problem and as several times as it takes.  You are only done with this step while you have wholly understood what the problem is asking you to do. It includes identifying all the provided information and identifying what you being asked to determine.

Again, it can't be stressed sufficient that you've to carefully read the problem. Sometimes a single word can totally change how the problem is worked.  If you only skim the problem you may well miss that extremely important word.

3.   Represent one of the unknown quantities along with variable and attempt to associate all the other unknown quantities (if there are any of course) to this variable.

4.   If applicable, sketch a figure reveling the situation. it may seem like a silly step, however it can be incredibly helpful with the next step on occasion.

5.   Make an equation which will relate known quantities to the unknown quantities. In order to does this make use of known formulas and frequently the figure sketched in the previous step can be used to make the equation.

6.   Solve out the equation formed in the previous step and write the answer to all the questions.  It is significant to answer all the questions which you were asked.  Generally you will be asked for many quantities in the answer and the equation will only give one of them.

7.   Check your answer. Do this through plugging into the equation; however also use intuition to ensure that the answer makes sense.  Mistakes can frequently be identified by acknowledging that the answer doesn't just make sense.

Let's begin things off with a couple of fairly fundamental examples to illustrate the procedure.  Note as well that at this point it is supposed that you are able of solving fairly simple linear equations and hence not much detail will be given for the real solution stage. The instance of this section is more on the set up of the equation than the solving of the equation.


Related Discussions:- Application of linear equations

Statistics, if the sum of mean and variance of a binomial distribution is ...

if the sum of mean and variance of a binomial distribution is 4.8 for five trials, the distribution

Determine the properties and query are definable in datalog, We now focus o...

We now focus on the use of Datalog for defining properties and queries m graphs. (a) Suppose that P is some property of graphs definable in Datalog. Show drat P is preserved und

Determine the max theoretical information rate, 1 Data is to be transmitted...

1 Data is to be transmitted over Public Switched Telephone Network (PSTN) using 8 levels per signaling elements. If the bandwidth is 3000 Hz, deduce the theoretical maximum transfe

Geometria, un prisma retto ha per base un rombo avente una diagonale lunga ...

un prisma retto ha per base un rombo avente una diagonale lunga 24cm. sapendo che la superficie laterale e quella totale misurano rispettivamente 2800cm e3568cm ,calcola la misura

Quistins, define even and odd function state whether given function are eve...

define even and odd function state whether given function are even odd or neither 1 f x =sin x cos x 2 f x {x}=x +x3n #Minimum 100 words accepted#

Example of rounding off, Example of Rounding Off: Example: Round ...

Example of Rounding Off: Example: Round off the subsequent number to two decimal places. 6.238 Solution: Step 1:             8 is the number to the right of t

Show that cos - cos /sin - sin = a/b, A ladder sets against a wall at an ...

A ladder sets against a wall at an angle α to the horizontal.  If the foot is pulled away from the wall through a distance of 'a', so that is slides a distance 'b' down the wall ma

Determine the general solution reduction of order, Determine the general so...

Determine the general solution to 2t 2 y'' + ty' - 3y = 0 It given that y (t) = t -1 is a solution.  Solution Reduction of order needs that a solution already be iden

What is the percent of increase heating oil, The price of heating oil rose ...

The price of heating oil rose from $1.10 per gallon to $1.43 per gallon. What is the percent of increase? The price of heating oil rose $0.33 ($1.43 - $1.10 = $0.33). To ?nd ou

Geometry, I don''t get it .... Help

I don''t get it .... Help

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd