Question

1. 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) 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.



KEY PART:Show your work.

answer:

Answer 1

Answer:

Age of Kim is 24 years and age of her sister is 12 years.

Step-by-step explanation:

Let the age of Kim's sister be a years,

So,

Age of Kim = twice of her sister's age

                   = 2 x a years

                    = 2a years

According to the question : -

a :  When we add Kim's age to her sister's age, you get 36. How old is each sister.

= >  Age of Kim + Age of Kim's sister = 36

= >  2a + a = 36

= >  3a = 36          [ Answer 1 ]

b :  

= >  3a = 36

= >  3a / 3 = 36 / 3

= >  a = 12          [ Answer 2 ]

Therefore,

Age of Kim's sister = a years = 12 years

Age of Kim = 2a years = 2( 12 ) years = 24 years

Answer 2

here is your answer OK ☺☺☺☺☺☺


suppose the age of Kim's sister be x. so bro.. ,
Age of Kim = 2x

According to the problem###
###Age of kim and her sister = 36
=>x + 2x = 36
=>3x = 36
=>x = 36/3
=>x = 12
Age of Kim's sister is 12 and that of kim is 24.


OK bro..... your question in any doubt say about me.......