anitakozyarsky anitakozyarsky

26-03-2015
Mathematics

contestada

how do you write 1.21 as fraction, when .21 is continuing?

Respuesta :

26-03-2015

[tex]x=1.212121... \\ 100x=121.2121... \\ 100x-x=121.2121...-1.212121... \\ 99x=120 \\ x=\frac{120}{99} \\ x=\frac{40 \times 3}{33 \times 3} \\ x=\frac{40}{33}[/tex]

The fraction is 40/33.

Answer Link

Otras preguntas

When nitrogen and aluminum form an ionic bond, what is the formula? (2 points)

Jerry measures the time it took for a ball dropped from a balcony to hit the ground. His stopwatch reads 2.3 seconds. How high is the balcony? A. 52 m B. 11 m C

Do you think the United States should intervene in the conflicts of other countries? Why or Why not?

Refer to Explorations in Literature for a complete version of this narrative. Which statement best expresses the central idea of "Mother Tongue" by Amy Tan? One

what are three elements in the periodic table

Which statements describe the artist and political achievements in China under Ming dynasty? A: The Ming decided not to restore China's civil service; They use

Shaun is eating at a restaurant. Arrange the events in order to describe Shaun’s sensory responses as his meal was served.

Please solve this problem with full sentences and explain it please. Question 2 (02.05 MC) Triangle PQR is transformed to triangle P'Q'R'. Triangle PQR has ver

Sebastian wrote the population as 300,000+40,000+60+7 write the population of Sebastian’s city in standard form

PLEASE SOLVE FOR B. PLEASE HELP VERY URGENT!