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Julianna is #x# years old. Her sister is 2 years older than her. Her mother is 3 times as old as her sister. Her Uncle Rich is 5 years older than her mother. How do you write and simplify an expression representing Rich's age?

Answer 1

Julianna's age #=x# Her sister's age #=x+2# Her mother's age #=3(x+2)# Rich's age #=3(x+2)+5# Simplify #3(x+2)+5=3x+6+5# #3(x+2)+5=3x+11#

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Answer 2

Julia Adams

#3x+11# years.

Here, Julianna is #x# years.

Her sister is #2# years older than her, #rArr # Her sister is #x+2# years old.

Her mother is #3# times as old as her sister, #rArr # Her mother is #3(x+2)# years old.

Her uncle Rich is #5# years older than her mother, #rArr # Her uncle is #3(x+2)+5# years old. #rArr 3x+6+5# years. #:.# Rich is #3x+11# years old.

Hope this helps :)

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Answer 3

Kennedy Adams

The expression representing Uncle Rich's age is: ( 3(2 + x) + 5 ). Simplified, it is: ( 6x + 11 ).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.