Decimals are used to describe parts of a number, something in between two whole numbers. Tenths, halves, eights etc. But 108 is only whole numbers, so there's nothing there to use a decimal for.
The 16th century Italian mathematician, Gerolamo Cardano was the first to use imaginary and complex numbers in his work on cubic equations.
Let's say you have a decimal number that has a 0 at the left of the decimal point, (like 0.057), and you want to change it into a fraction. First take all the numbers to right of the decimal point (in this case 57, you can drop the leading 0's) and that will be your numerator (the "top" part of your fraction). For the denominator ("bottom" part) of your fraction, use a 1 followed by the same number of 0's as their are digits after the decimal point (in this case 3 -- here you must count the leading 0!). So 0.057 would be 57/1000 as a fraction. Decimal numbers that have numbers other than 0 the the left of the decimal point can be converted into mixed numbers. Just use the numbers the the left for the integer part of the number, and the same procedure as above to convert to a fraction part. Best explained as an example: 2305.0994 is the same as 2305 994/10000.
It is a point (or full stop) in most countries although quite a few use a comma as the separator.
Real numbers are all numbers which do not contain "i", when "i" represents the square root of -1. All numbers which do contain "i" are "imaginary numbers" and are not real numbers. This means that all numbers you'd ordinarily use are real numbers - all the counting numbers (integers) and all decimals are real numbers. So in answer to your question, all the real numbers that are not whole numbers are all the decimal numbers - including irrational decimals such as pi.
To solve linear equations, you always use the inverse operations
One of the most common ways to represent linear equations is to use constants. You can also represent linear equations by drawing a graph.
a system of equations
They don't.
Linear Algebra is a branch of mathematics that enables you to solve many linear equations at the same time. For example, if you had 15 lines (linear equations) and wanted to know if there was a point where they all intersected, you would use Linear Algebra to solve that question. Linear Algebra uses matrices to solve these large systems of equations.
Aidan beavis perera
To solve it by coordinate graphs you would take a point from the line and plug in the X and Y value into the equations and or inequalities.
You would solve them in exactly the same way as you would solve linear equations with real coefficients. Whether you use substitution or elimination for pairs of equations, or matrix algebra for systems of equations depends on your requirements. But the methods remain the same.
Determunants simplified the rule for solving simultaneous linear equations.
Gaussian elimination is used to solve systems of linear equations.
It really depends on what type of symbol you use (ex. X + - /), but for division you can move the decimal place over for both numbers (the dividend and the divisor) until both numbers are whole and do normal division and then after you would count how many places you moved the decimal place and move the decimal place that many times (to the left) to get your answer. Hope This Helps! ^.^
Prime numbers are prime numbers - whether we count in the decimal, binary, hexadecimal or another base.