Devaughn is 15 years older than sydney. the sum of their ages is 87 . what is sydney's age?

Subtract the difference in age from the total:

87 - 15 = 72

Divide by 2:

72 / 2 = 36

Sydney is 36 years old

Devaughn is 15 years older: 36 +15 = 51 years old

51 + 36 = 87

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

multiply length by height. multiply the length by the height, and then double the product. work out 10 x 10 results = 100 square inches, then work out 100 x 2 = 200. the answer is 200 square inches.

step-by-step explanation: