khaz8438 khaz8438
  • 13-07-2017
  • Mathematics
contestada

Prove that for all natural numbers n 8n-3n is divisible by 5

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apologiabiology
apologiabiology apologiabiology
  • 13-07-2017
8n-3n=n(8-3)=n(5)=5n=5 times n
5 is a factor of 5n so it is evenly divisible by 5
and since n is a natural number, it is the multiplier to make multipules of 5

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konrad509
konrad509 konrad509
  • 04-08-2018

[tex] 8n-3n=5n [/tex]

One of the factors is 5, so the number is divisible by 5.

Answer Link

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