tiffp16 tiffp16
  • 16-09-2016
  • Mathematics
contestada

How many pairs of whole numbers have a sum of 40

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avachriss
avachriss avachriss
  • 16-09-2016
it is 20 
39+1
38+2
37+3
36+4
35+5
Until you get to 20+20
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