hellfirelily
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kim's age is twice that of her sister. When you add Kim's age to her sister's age, you get 36. How old is each sister?
A model to help you start your equation as: Kim’s age + Sister’s age = 36
(a) Write an equation that represents the situation. Explain any variable used.
(b) Solve the equation from Part (a). Show your work. State your solution as a complete sentence

Respuesta :

Dawson14
   A. 2x+x=36
        x=12


 B.  2(12)+12=36
      24+12=36


C. Brainliest if satisfied :D
choixongdong
a)
Let x = sister's age
Kim's age is twice that of her sister
so Kim's age = 2x
Kim’s age + Sister’s age = 36
equation:
x + 2x = 36

b) solve the equation x + 2x = 36

x + 2x = 36
3x = 36
  x = 36 / 3
  x = 12
  Kim's age = 2x = 2(12) = 24


answer
Sister's age is 12 and  Kim's age is 24. 

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