17-05-2016
Mathematics

Answered

the sum of three consecutive even numbers is 78. What is the first number

Verified Answer :

cutelion918 cutelion918

17-05-2016

3x + 3 = 78

3x = 75

x = 25

So the three numbers are 25, 26, and 27.

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apologiabiology apologiabiology

17-05-2016

even consecutive numbers are 2 apart
(2,4,6, example)
so they are
n,n+2,n+4
their sum is 78
n+n+2+n+4=78
3n+6=78
minus 6
3n=72
divide 3
n=24
smallest is 24

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