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belka [17]
4 years ago
14

An arithmetic series contains 20 numbers. The first number is 102. The last number is 159. Which expression represents the sum o

f the series?
Mathematics
1 answer:
aev [14]4 years ago
3 0
Given that 159-102=57

and 57/20=2.85

n=2.85

you would make the sum be 102+1n+2n.......20n= sum
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