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Use a five-step plan to solve the following word problem. Show all five steps in your response:



Doug is twice Anne's age. Doug is 34 years old. How old is Anne?




Doug is twice Anne's age. Doug is 34 years old. How old is Anne?

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Doug is twice Anne's age. Doug is 34 years old. How old is Anne?
Represent the unknowns:  d for Doug, a for Anne.
Then d=34 years.
Doug is twice Anne's age, so d=2a.  But d=34 yrs, so 34 yrs = 2a.
Solve this for a:  a = 34 yrs   /  2    =    17 yrs 

Doug is 34, Anne is 17.

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