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3 years ago

Devaughn's age is two times Sydney's age. The sum of their ages is

Mathematics

2 answers:

blagie [28]3 years ago

8 0

Devaughn's age = d

Sydney's age = s

d = 2s

d + s = 15

2s + s = 15

3s = 15

s = 5

Sydney is 5 years old

leonid [27]3 years ago

4 0

5? Because 5x2 is 10 and 10+5 is 15.

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