substitution method calculator

Let us learn about substitution method calculator

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Substitution method calculator used to solve an algebraic expression where we replace 1 variable by an equivalent in terms of another variable. Substitution method calculator works to get the equation & solve for the variable & substitutes the values.
Solve by using substitution method calculator.
8x + 9y = 4, - 9x + y = 20.
Solution:
8x + 9y = 4 ---- (1)
- 9x + y = 20 ---- (2)
From equation (2), we get
- 9x + y = 20
y = 20 + 9x so plug this y = 20 + 9x in equation 1 & solve for x

8x + 9 (20+ 9x) = 4
8x + 180 + 81x = 4

89x + 180 = 4

89x = - 176

x = - 1.97 Plug this x value in equation 2 to find out y value.

- 9 (- 1.97) + y = 20

17.79 + y = 20

y = 2.21
Answer is x = - 1.97, y = 2.21.
In our next blog we shall learn about number line generator. I hope the above explanation was useful.Keep reading and leave your comments.

line plot example

Let us learn about a line plot,& line plot example

A line plot helps us to find data on a number line with x or other marks to show frequency

1 type of graph is a line plot. A line plot provides an easy method to organize data. They are usually applied when there is 1 group of data, & fewer than 50 values.

A line plot includes of a horizontal number line, on which each value of a set is denoted by an x over the corresponding value on the number line. The number of x's above each score indicates that how many times each score occurred.
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5 grade math

Let us learn about 5 grade math & fifth grade students
5th graders receive their 1st basic geometry problems & by the end of the school year they should be able to identify & categorize triangles by their properties & measure & construct triangles & angles with a protractor. They will also learn about tessellations, planes, & grid coordinate systems.
Before advancing to the 6th grade, students will design surveys & try to collect data & adequately record it using graphs & diagrams. The 5th grade also prepares learners to make appropriate predictions when presented with sufficient background information on a given situation.
Many 5th grade math students are able to earn a passing grade in their math classes without fully understanding the concepts which they have been taught. It's critical for parents to monitor their kid's progress. Some math learners can slip by without showing major signs of confusion. This means that even if your kid does not ask for help with their 5th grade math they could still have skill gaps. These skill gaps will interfere with success in 6th grade math.
Math assessment tests are 1 method for parents to learn how much their kid truly gained from grade 5. These assessments test are available online through Internet tutoring centers. Additional information on this math subject can be found in the math section of online math tutoring website.
In our next blog we shall learn about 4 grade math I hope the above explanation was useful.Keep reading and leave your comments.

average deviation

Let us learn about average deviation

The average deviation is an estimation of how far off the actual values are from the average value, assuming that your measuring tool is accurate. You can apply this as the estimated error. Sometimes it is given as a number or as a percentage.

The average absolute deviation or the average deviation is a measure of dispersion. It is the average of absolute deviations of the exclusive values (individual values) from the mean or from the median. The average deviation is 1 of several indices of variability which statisticians apply to characterize the dispersion in-between the measures in a given population. Average deviation= divided by number of deviations involved & deviation values added together Then, place a -+ along with that number to the right of the average value.

Average Deviation is the accurate method of finding the error margin from Standard deviation we will use the average deviation. It is easy to multiply 0r to Calculate. The Average deviation is known as average absolute deviation.
The individual values from the median or from the mean’s averages are known as the Average absolute deviation. Average Deviation is a measure of dispersion. Average deviation is known as the Mean deviation. Average Deviation is applied to characterize the dispersion among the measures from given data & Average Deviation is the one of the several indices of the variability.
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equivalent fractions worksheets

Let us learn about equivalent fractions worksheets

Printable math equivalent fractions worksheets, a valuable tutor or parent lesson plan resource of printable, copyable, worksheets featuring fraction activities for learners consolidation.

An ideal tutor resource for lesson plans, home educators or parents looking to give there kids more practice at fraction calculations by using equivalent fractions calculator. Each question sheet has a matching solutions sheet, & there is a help page to show us how to work out the problems.

A fraction is a number which is the portion or part of a whole. Key to learn fractions understand how to represent part of the whole. Sometimes the whole will be a pizza, a measuring cup & it is important to understand what the part is each time the whole is different.

When starting with fractions we begin by focusing on 1/2 and the 1/4 before entering into equivalent fractions worksheets & using the 4 operations with fractions (adding, subtracting, multiplying and dividing).

In our next blog we shall learn about equivalent fractions calculator I hope the above explanation was useful.Keep reading and leave your comments.

Prime Factorization calculator

Let us learn about Prime Factorization calculator

A prime factorization calculator is a calculator that takes a number as an input & in return gives the list of prime factorization as its output.

Prime factorization of a few numbers:
24 =2 x 2 x 2 x 3= 2³ x 3
72= 2 x 2 x 2 x 3 x 3 = 2³ x 3²
98=2 x 7 x 7= 2 x 7²

Prime factorization is the processes of finding a list of prime factors for any number. To write in short each factor that is repeated can be written in exponent form

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different types of lines

Let us learn about line & different types of lines.

A line which is the collection of points, along with a straight line path & going to opposite direction, & also a line segment is part of a line; a line is having 2 end points. A ray also a part of line, 1 side is endpoint & other side goes to 1 direction.

A line does not have starting point imagine, a line is endless from both directions. A continuous level of the length contains more than 2 points.

The following are the three different types of lines:

1. Parallel line,
2. Perpendicular line, and
3. Intersecting line.

In our next blog we shall learn about axis of symmetry formula I hope the above explanation was useful.Keep reading and leave your comments.

area of cube

Let us find out area of cube.

Cube of a number is that number raised to the power three

The cube is also said to be as a regular hexahedron & cube is one of the five Platonic solids.

Find the lateral area of cube with side length 4 meter.

Solution

The lateral area of a cube = 4a² square units

Given, a = 4

So, the lateral area of the given cube = 4 * 4²

= 4* 4* 4

= 64

The lateral area of the given cube is 64 square meter.

Find the lateral area of cube whose side length is 3 feet.

Solution

The lateral area of a cube = 4a² square units

Given, a = 3

So, the lateral area of the given cube = 4 * 3²

= 4 * 3 * 3

= 36

The lateral area of the given cube is 36 square feet.

In our next blog we shall learn about denied powers I hope the above explanation was useful.Keep reading and leave your comments.

mean deviation

Let us learn about mean deviation

Also mean of deviations = Sum of deviations / Number of observations

M.D. (a) = Sum of absolute values of deviations from 'a '/Number of observation

The average of the exact values of the differences between individual numbers and their mean.

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the area of a circle

Let us learn about the area of a circle

Formula to find the area of the circle is πr²

"r" represents the radius of the circle

Find the area of the circle with radius 14 meter
Solution:
We know the formula for finding the area of the circle =π r²
Here r = 14 meter,π = 3.14, substitute r and π value in the above formula we get
Area = 3.14 * 14²
Area = 3.14 *14*14
Simplify the above we get
Area = 615.44 meter square
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addition properties

Let us learn solve problem on addition properties

Addition that represents combining collections of objects together into a larger collection. It is signified by the (+) plus sign.

add the hibiscus flower given in picture.



What is the value of ‘x’ of an inequality expression x + 1 > 3.
Solution:
Given,
Inequality x + 1 > 3
For finding the value of x, consider it as equality.
That is , x + 1 = 3
X = 3 -1
X = 2
For x= 2 the expression is equality. For inequality the value of x should be greater than 2.
Answer: x = 3 and above.

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1 gallon how many litres

Hi Friends!!!

Let us learn about 1 gallon how many litres?

The gallon is an organization of intensity which is approximately equalize to 4 liters primarily victimized in Incorporated States and also in different English mumbling countries. It is widely practical for our fish container, aquatics spot, car hydrocarbon intake, installation exercise etc

Example 1:
Convert 11 U.S gallons to litres.
Solution:
We know that 1 U.Sgallon = 3.785411784 litres.
Therefore 11 U.Sgallon = 11 x 3.785411784 litres.
= 41.69litres.
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Surds

Hi Friends!!!

Let us learn how to do surds?

Surds are numbers left in 'conservativist base work' or 'square root form' (or 'solid structure work' etc). An reasonless root of a noetic numerate is famed as a surd. They are therefore irrational numbers They are therefore incoherent drawing. The intellect we lose them as surds is because in quantitative spring they would go on forever and so this is a real clumsy way of composition them.

Let us learn how to add surds ( 5 +√32 - ( 12 + √50
Solution : First we simplify the surds √32 and √50
√50 = √25x2 = 5√2
Now (5 + √32) – (12+ √50)
= 5 + 4√2 –(12 +5√2)
= 5 + 4√2 -12-5√2 Here the surd √2 is common term so like surds
= 5 -12 + √2( 4-5)
= -7 - √2
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Einstein's concept of non-euclidean

Welcome to math tutor online for free,
Einstein came along and discovered
that these non-Euclidean geometries were just the thing to describe
the real-world interactions of objects with mass - that is, to
describe gravity. examples on math forum; This is a case where the mathematical system was
invented with no consideration of the real world (and therefore no
faith element), but it turned out that this system does appear to
describe the real world.

The experiments to show that Einstein's theory of general relativity
do describe the real world better than any other mathematical system
are very tricky; it is still possible that another system would do
better. We can be absolutely sure that the results of general
relativity theory follow from its assumptions; the only question is
whether or not those assumptions match the way the real world is.
more examples on online math forum.

law of trichotomy

Welcome to online math forum,
The law of trichotomy still isn't covered. It can be split into two parts: at most one of the three cases can occur, and at least one of the three cases occurs. more examples on math forum; The first can be stated as an axiom of addition as

It is not the case that x = x + y.

And that says it is not the case that x > x. The other half requires the axiom

For each x and y, either x = y or there is some z such that x + z = y, or there is some z such that x = y + z.

With these axioms, all the properties of magnitudes needed in the first few books of the Elements can be proved. For instance, we can prove

If 2x = 2y, then x = y.

more examples on free online math tutoring.

Euclid's square theory

Welcome to math tutoring,
The only figure defined here that Euclid actually uses is the square. The other names of figures may have been common at the time of Euclid's writing, or they may have been left over from earlier authors' versions of the Elements. Euclid makes much use of parallelogram, or parallelogrammic area, which he does not define, but clearly means quadrilateral with parallel opposite sides. Parallelograms include rhombi and rhomboids as special cases. get more examples on help in math; And rather than oblong, he uses rectangle, or rectangular parallelogram, which includes both squares and oblongs.

Squares and oblongs are defined to be "right-angled." Of course, that is intended to mean that all four angles are right angles. Sometimes Euclid's definitions are too brief, but the intended meaning can easily be determined from the way the definitions are used. In particular, proposition I.46 constructs a square, and all four angles are constructed to be right, not just one of them. read more on free math tutoring.

Online trigonometry help

Hi Friends!!! let us learn about Free trigonometry help

Online trigonometry is a branch of mathematics that studies triangles, particularly good triangles. Trigonometry deals with relationships between the sides and the angles of triangles, and with trigonometric functions, which depict those relationships and angles in mass, and the event of waves specified as measure and short waves.

Trigonometry homework is ordinarily taught in third hand schools either as a severalise education or as try of a precalculus layer. It has applications in both unalloyed math and applied science, where it is intrinsic in more branches of study and discipline. A grow of trigonometry, called spherical trigonometry, studies triangles on spheres, and is essential in astronomy and piloting.
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Figures and there boundry

Welcome to free math tutoring online,

The definition of figure needs to be fleshed out. In order to be a figure, a region must be bounded, that is, held in by a boundary. For instance, an infinite plane is unbounded, so it is not intended to be a figure. Neither is the region between two parallel lines even though that region has the two parallel lines as its extremities.

Other figures may be considered if other ambient spaces are allowed, although Euclid only uses plane and solid figures. online math forum; For a one-dimensional example, a line segment could be considered to be a figure in an infinite line with its endpoints as its boundary. Also, a hemisphere could be considered to be a figure on the surface of a sphere with the equator as its boundary. read more on math forum.

Plane surface elements

Welcome to free math help,

We see now that a plane surface, usually abbreviated to the single word "plane," is a kind of surface. Perhaps the remainder of the statement is a definition of content, but, if so, some words are missing.

One interpretation often given is that if a plane surface contains two points, then it contains the line connecting the two points. If that were the meaning, then it would be just as well to make that the explicit definition or to make it a postulate. examples on online math tutors ; But that does not seem to be Euclid's intent. His proposition XI.7 has a detailed proof that the line joining two points on two parallel lines lies in the plane of the two parallel lines. No proof at all would be necessary if that line were by definition or by postulate contained in a plane that contained its ends.

Note that a plane surface may be infinite, but needn't be infinite. It can be a square, a circle, or any other plane figure. more examples on math tutors online.

Geometrical point

Welcome to free math help online,
A "point" in geometry can be thought of as something
with no length, width, or breadth. Everything in the real world has
some length, width, and breadth; we can only approximate a point by
making a dot with the sharpest pencil we can get. free math; (Physicists now
think that electrons may actually be points, but electrons obey the
laws of quantum physics, which is rather more complicated than
ordinary geometry.)

Still, somehow, geometry is very useful in describing the real world,
even though strictly speaking, it describes things that don't exist in
the real world. more explanation on math forum.

Counting calender numbers

Greetings from free online math help,

In short, since the historical/calendric situation is so messy, I
believe that we should measure the millennium by noticing when the big
party is, and Prince doesn't party like it's 2000. I think we're in
the new millennium now.

It's also worth noting that since there was no year zero, the years
transitioning from BCE to CE are numbered ... -3, -2, -1, 1, 2, 3, ...
But some people, free math; notably astronomers, want the math to work out
better, so they actually use a year zero (... -2, -1, 0, 1, 2, ...),
so they're one year off from the rest of us in negative-land.
Learn more on online math forum.

pre algebra homework help free

Algebra is the branch of mathematics concerning the study of the rules of operations and relations, and the constructions and concepts arising from them, including terms, polynomials, equations and algebraic structures. In mathematics, an expression is a finite combination of symbols that are well-formed according to the rules applicable in the context at hand. Symbols can designate values variables, operations, relations, or can constitute punctuation or other syntactic entities. Here we are going to study about how to solve the free pre algebra homework help and its example problems

free pre algebra homework help- Example Problems:

Consent to us observes some of the free pre algebra homework help problems.
Free pre algebra homework help- Example 1:
Solve the following algebraic equations
4x + 4 = 12
Solution:
First we have to add both sides -4 we get
4x+4-4 = 12-4
In left hand side 2-2 is cancelling reaming we get
4x =-8
Divide both sides 4 we get
x = -2
Therefore the value of algebraic variables are x = -2
In our next blog we shall learn about algebra 2 homework I hope the above explanation was useful.Keep reading and leave your comments.

key math

Let us learn about key math

· In math, answer keys are provided for the set of problems in order to refer whether the solution we obtained is correct or not.

· Answer key is very useful for the lower grade students.

· In this article of answer key for math, some basic math example problems and practice problems are provided with answer key.

These prepare are really exercising your brain. Ks-1 (key stage) topic is covered 1^st and 2^nd grade lesson. These tests are based on measurement, fraction, and mental operation etc. This mathematic worksheet is very helping you to improve your problem solving ability. Here you can learn math terms, Exam practices test, problem solving and online test and our tutors will helps you .Math online tutor is the instructor who provides us the specific skills in the mathematics through online.

In our next blog we shall learn about volume of sphere formula I hope the above explanation was useful.Keep reading and leave your

Understanding math

Welcome to online math tutors,
It wasn't until I got to college, where they started dealing with the
components of molecules (atoms and electrons) that chemistry started
making sense. That's where they should have started, and there is no
telling how many kids had their interest in the subject killed by
starting at the other end.

Similarly, mathematics is, by and large, taught backward. You are
drilled on little skills, which turn out to be important, but without
ever really being shown the bigger picture, which would help you
understand _why_ they are important.

Can you imagine trying to teach
someone to play chess by having them practice moving the individual
pieces, math helper ;without ever letting them know that there was such a thing as
a chess 'game', or even letting them see a board with more than one
piece on it? Who would bother to learn it? That's something like the
way we currently go about teaching math. Is it any wonder that so many
students lose interest so early?
learn more on online math forum.

Learn to enjoy math

Welcome to free online math help,
Actually, math starts to get _fun_ in 7th and 8th grade. You stop
dealing with particular numbers, and start dealing with patterns,
which are much more powerful, and therefore much more interesting. meet free online math tutors.

I don't believe that anyone can stay focused for long on a subject
that she doesn't like, so my advice would be to learn to enjoy math,
instead of looking at it as something that you're 'supposed' to learn.
more examples on math forum.

Philosophy of Mathematics

Welcome to free math help online,

There is a philosophy whose purpose is to help people get past this
"freezing" business. It's called Zen Buddhism. (I know, that _sounds_
like a religion, but it isn't.) You can read a really nice, short,
simple introduction to the ideas of Zen Buddhism in a book called _Zen
in the Martial Arts_, by Joe Hyams. online math tutors ;(I know, that _sounds_ like it's
going to be a book about karate, or judo, but it isn't. At least, not
mostly.) It's a pretty popular book, so you should be able to find it
in most libraries or bookstores. It would be well worth your time to
read it.

This probably isn't what you wanted to hear, but it's better that you
should find out sooner rather than later. learn more with free online math tutoring.

Chess related to math

Welcome to free math tutoring,
It's a little like what you do when you invent a board game like
chess. You specify that there are such-and-such pieces, and they can
move in such-and-such ways, and then you let people explore which
board positions are possible or impossible to achieve. 

The main difference is that in chess, you're trying to win, while in
math help, you're just trying to figure out what kinds of things can - and
can't - happen. So a 'chessamatician', instead of playing complete
games, might just sit and think about questions like this:

 If I place a knight (the piece that looks like a horse, and moves
 in an L-shaped jump) on any position, can it reach all other
 positions?

 What is the minimum number of moves that would be required to get
 from any position to any other position?

Think, get more examples on free online math tutoring.

Introduction of Mathematics

Hi
I am your math helper,

mathematics is the derivation of
theorems from axioms.

So what does that mean?

It means that mathematics is a collection of extended, collaborative
games of 'what if', played by mathematicians who make up sets of rules
(axioms) and then explore the consequences (theorems) of following
those rules, more examples in math forum,

For example, you can start out with a few rules like:

A point has only location.
A line has direction and length.
Two lines interesect at a point.

Hope the above explanation was interesting, get connected with free math tutors online

multiply matrices

Let us learn about multiply matrices

Matrix has a list of data. In math matrix is a rectangular collection of the elements. The elements are exposed in the rows and the columns. In math array elements are put in the parenthesis or square brackets. In math matrix is symbolize by capital letters for example A, B, C……We can do addition, subtraction and multiplication in matrices. Let us see learn online how to multiply matrices in this article.

Multiply the every row of first matrix by every column of second matrix.
If we multiply matrices, that must be present in same or different order. Let us consider we add matrix B by matrix A. If matrix A has 3X 3 orders, the matrix B also present in 3 X3 orders or other order like 2 X2. In matrix multiplication multiply every row of first matrix by every column of second matrix.
In our next blog we shall learn about ammonia solution I hope the above explanation was useful.Keep reading and leave your

Different numbers in India

Welcome to free math tutoring online, let us study about indian numericals,

The Hindu-Arabic numeral system is a positional decimal numeral system. Many of the countries adopted the Indian numerals.

Most of the positional base 10 numeral systems in the world have originated from India, where the concept of positional numerology was first developed. The Indian numeral system is commonly referred to in the West as the Hindu-Arabic numeral system or even Arabic numerals, since it reached Europe through the Arabs. you can find these examples of help in math numericals below,
I hope the above explanation was useful, math forum helps you with more examples.

8th grade math worksheets

8^th grade math worksheets contain basic math problems for 8^th grade students to workout. The basic math problem deals with solving algebra problems with detailed solutions and worksheets for solve. Algebra is mainly used to determine the unknowns with the reference of known values. Algebra worksheet includes real numbers, matrices, vectors and complex numbers. The alphabetic letters are used to represents the constants. The integers are referred as constants. The solved worksheets for 8^th grade math are discussed below.

8th Grade Math Worksheets Example:

Example 1:
Determine the distance between the points (-5, -5) and (1, 3).
Solution:
The distance d between points (-5, -5) and (1, 3) is given by

d = sqrt [(1 - -5) ² + (3 - -5) ²]
Solve the above term.

d = sqrt (36 + 64) = 100

In our next blog we shall learn about "empirical formula calculator'

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ln x

Let us learn about ln x

A function in general tells the y value for the corresponding x value. The inverse of a function will tell you which x value to get that value of y.

An inverse function f ^-1

• For every x in the domain of f, f ^-1[f(x)] = x, and
• For every x in the domain of f ^-1, f[f ^-1(x)] = x

The domain of function f is the range of inverse function f ^-1 and the range of function f is the domain of inverse function f ^-1.

The differentiation is the branch of calculus. There are two types of calculus namely Integral calculus and differentiation calculus . The differentiation is nothing but the finding derivatives of the given function and the integral deals in solving indefinite or definite integrals. In this article we shall discuss about differentiation of ln x related problems. The following are the examples related to differentiation of ln x.

Differentiate Ln X:

Example 1: Differentiate ln x
Solution: Let f(x)= ln x
Differentiating f(x), we get
f'(x) = 1/x
So, the solution is 1/x

our next topic is " minutes to hours"

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