How would you convince a fellow student that the number 0.57 is a rational number? explain and explain

Irrational numbers cannot be written in the form of a fraction in which both the numerator and denominator are whole numbers. Therefore, you can prove to your fellow student by using
57/100 as a fraction in which both the numerator and denominator are whole numbers and is equivalent to 0.57

, hope sum1 helps you out thooo

 0.57 = 57/100 this means it has to be rational.

Explanation: You have to explain to them that any number that can be written in fraction form is a rational number. This includes integers, terminating decimals, and repeating decimals as well as fractions. An integer can be written as a fraction simply by giving it a denominator of one, so any integer is a rational number.

4+y = -36

y = -40

The definition of a rational number is the ratio of two integers

Lets rewrite .57 as a fraction

.57 = 57/100

Both 57 and 100 are integers and 57/100 is the ratio of integers so .57 is rational.

Step-by-step explanation:

4+y = -36

Subtract 4 from each side

4+y-4 = -36-4

y = -40

The definition of a rational number is the ratio of two integers

Lets rewrite .57 as a fraction

.57 = 57/100

Both 57 and 100 are integers and 57/100 is the ratio of integers so .57 is rational.

Start by proving to them that the number 0.57 can be converted into a fraction . A whole number can't exactly be put in to a fraction. 0.57 can be converted to 14.25/25. This information means that 0.57 IS a rational number. Hope this convinced them!

Because a rational number is basically a fraction or decimal form 

Sorry but i only know the answer to number 3

A rational number is a number that can be written as a fraction where numerator and denominator are both integers (and the denominator is not zero). Since 0.57 = 57/100, so the number 0.57 can be written as a fraction where the numerator (57) and denominator (100) are both integers. 

You have  to explain to them that any number that can be written in fraction form is a rational number. This includes integers, terminating decimals, and repeating decimals as well as fractions. An integer can be written as a fraction simply by giving it a denominator of one, so any integer is a rational number.