DeeKath0omartypu DeeKath0omartypu
  • 21-12-2016
  • Mathematics
contestada

Nine more than half of a number is 21

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baabaagreysheep
baabaagreysheep baabaagreysheep
  • 21-12-2016
I assume you're looking for the number:
0.5n + 9 = 21
- 9
0.5n = 12
÷ 0.5
n = 24
So the beginning number is 24, hope this helps!
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