anonymous
  • anonymous
Find the 20th number Of 4,8,12,
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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lgbasallote
  • lgbasallote
hmm first ask yourself this...is that arithmetic progression? or geometric?
anonymous
  • anonymous
Geometric
anonymous
  • anonymous
What kind of operation ?

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anonymous
  • anonymous
Multiplication
lgbasallote
  • lgbasallote
hmm try this to check.. 8/4 = 12/8 ?
anonymous
  • anonymous
Oh then addition
anonymous
  • anonymous
If it's addition, it's just +4 every time.
anonymous
  • anonymous
So 80.
lgbasallote
  • lgbasallote
right! so the equation for arithmetic progression is... an = a1 + (n-1)d can you tell me which of these are given..which you're looking for? an = ? a1 = ? n = ? d = ?
anonymous
  • anonymous
@Numbers Is it crystal clear to you?

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