ho0lly3loryourise ho0lly3loryourise
  • 24-11-2016
  • Mathematics
contestada

A number subtracted from 90 is three times that number

Respuesta :

BobR9
BobR9 BobR9
  • 24-11-2016
90-n=3n
90=4n
22.5=n

Final answer 22.5
Answer Link
syed514
syed514 syed514
  • 26-11-2016
90 - x = 3xnow you need to solve for x 
By combining the x-terms, we get 90 = 4x. Dividing both sides of the equation by 4, we get x = 2.25, or 9/4. 
Answer Link

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