The sum of 5 consecutive even numbers is 100 what is the first number in this sequence

asked Oct 24, 2018 199k views

5 votes

by Chech

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5 votes

20x5=100 so the first number in this sequence should be 20

Imgen answered Oct 25, 2018

by Imgen

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5 votes

x + (x+2) + (x+4) + (x+6) + (x+8) = 100

5x+20=100
5x+20-20=100 - 20
5x=80
x=16

Adi Levin answered Oct 31, 2018

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