djzproz
djzproz djzproz
  • 03-06-2016
  • Mathematics
contestada

decrease 20 by 15%
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decrease 20 by 15 help class=

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Tareki
Tareki Tareki
  • 03-06-2016
it means (20 - (15% of 20) ) = 
lets calculate 15% of 20 : 
15% of 20 = (15/100) * 20 = 3 
so, 20-3 = 17 
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