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8 votes
PLEASE HELP MEEEEEEEE :)))

PLEASE HELP MEEEEEEEE :)))-example-1
User Dacklf
by
2.4k points

2 Answers

21 votes
21 votes

Answer:

26

Explanation:

Lets say Devaughn age = d and Sydney age = s

Therefore,

d = 2s

and s + d = 78

Well, we can use substitution for d.

s + (2s) = 78

3s = 78

s = 26

User Gene Pavlovsky
by
3.1k points
5 votes
5 votes

Answer:

26

Explanation:

Devaughn = 2x

Sydney = x

x + 2x = 78

3x = 78

x = 78 / 3

x = 26

Hope that helps!

User Bryan Stearns
by
3.0k points