ilovelizah
ilovelizah ilovelizah
  • 02-12-2016
  • Mathematics
contestada

when a number is decreased by 10% of itself, the result is 171. what is the number?

Respuesta :

bartdrinksmalk
bartdrinksmalk bartdrinksmalk
  • 02-12-2016
For some number [tex]x[/tex], we subtract [tex]0.1x[/tex] and get 171.

So we have:
[tex]x-0.1x=171[/tex]
[tex]\rightarrow 0.9x=171[/tex]
[tex]\rightarrow x=190[/tex]
Answer Link

Otras preguntas

2x-3y=8 -5x+2y=13 find The x coordinate
Why is an angioplasty an incorrect treatment for an aneurysm?
write a compound inequality that represents the evelation range for each type of plant life
Who was the 33 president of the United states?
what is 6a-12=8a ?????????? in solving linear equations???
Which of the following structures forms a protective layer between the environment and the inside of a body? a.blood vessel b.muscle c.skin d.bone
A piggy bank contains an equal number of pennies, nickels, dimes, and quarters. If the total amount of money in the piggy bank is $7.79, find the number of each
what is 1/7 divided by 7
What is decrease £20 by 15%
how does precipitation return to the water cycle