kreynoso9018
kreynoso9018 kreynoso9018
  • 27-01-2022
  • Mathematics
contestada

10 POINTS! Aly is 1/3 the age of her mother. The sum of their ages is 52. How old is Aly?

Respuesta :

reinhard10158
reinhard10158 reinhard10158
  • 27-01-2022

Step-by-step explanation:

x = Aly's age

y = her mother's age

x + y = 52

x = y/3

we simply use the identity of the second equation in the first equation :

y/3 + y = 52

y + 3y = 156

4y = 156

y = 39

x = y/3 = 39/3 = 13

Aly is 13 years old.

her mother is 39 years old.

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