bh222426bonbon bh222426bonbon
  • 07-02-2017
  • Mathematics
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When a number is decreased by 30% of itself, the result is 28. What is the number?

Respuesta :

wolf1728
wolf1728 wolf1728
  • 07-02-2017
x -.30x = 28
.70x = 28
x = 40
Answer Link
lyssa86
lyssa86 lyssa86
  • 07-02-2017
Number decreased by 30% of itself is 28 
x - .30x = 28 
.70x = 28 
x = 28/.70 = 40 

40 minus 30% of itself is 40 - 12 which does = 28.
Answer Link

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