2 years ago

Devaughn is 15 years younger than sydney. the sun of their ages is 63. what is sydney’s age?

Mathematics

1 answer:

klasskru [66]2 years ago

5 0

Answer:

Step-by-step explanation:

d = s - 15

d + s = 63

Replace d with s - 15

s - 15 + s = 63

2s -15 = 63

2s = 78

s = 39

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