mdkdldpdpd5790 mdkdldpdpd5790

21-11-2017
Mathematics

contestada

Express 9.21212121212... as a rational number, in the form pq

Respuesta :

LammettHash LammettHash

21-11-2017

[tex]x=9.212121\ldots=9.\overline{21}[/tex]
[tex]100x=921.212121\ldots=921.\overline{21}[/tex]
[tex]99x=921.\overline{21}-9.\overline{21}=921-9=912[/tex]
[tex]\implies x=\dfrac{912}{99}=\dfrac{304}{33}[/tex]

Answer Link

Otras preguntas

which of these literary devices replaces a concept with a related idea

Speech on has internet turned a modern man to reclusive

5/7 of the teaching staff in a certain primary school are females, what fraction of the staff are males

What is the value of X in the equation 1/5x - 2/3y = 30, when y = 15?

work out sues total pay

I really would like to actually understand how to solve this. Please tell me how you got the steps. So far, this was my thinking: [tex]\frac{4x+2}{x^{2} -9+8} =

Find the first three terms of this sequence Un=5n-2n3.

Describe the procedure involved in preparing these blood cells for viewing under the microscope and state the reason why this is needed

Using Pythagoras' Theorem please solve it.

The 250 m between Sam's house and the tennis court corresponds to 5 cm on a town map. What is the actual distance between Sam's school and the library if they a