Question

Alvin's age is two times Elga's age. The sum of their ages is 81. What is Elga's age?

Answer 1

20.25

Explanation:

81 = (x*2)*2

81 ÷2 ÷2 = x

x = 20.25 or 20 and 1/4

Answer 2

Elga is 27 years old

Explanation:

AGE

Alvin 2x

Elga x

x+2x = 81

81=3x

81/3=x

x=27

Hope this helps! (: