madipaigerose madipaigerose

21-09-2017
Mathematics

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

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Аноним Аноним

21-09-2017

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

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

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YoniGasai YoniGasai

21-09-2017

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

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