SOLUTION: callie is 4 years older than andrew. in 3 years the sum of their ages will be 52. how old is each now? i have have to solve each problem by creating a chart, writing an algeb

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Question 555758: callie is 4 years older than andrew. in 3 years the sum of their ages will be 52. how old is each now? i have have to solve each problem by creating a chart, writing an algebraic equation and then solving it
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
A key to age problems is the fact that the difference in
two peoples ages remains the same throughout their lives.
This is obvious, but often overlooked
Let = Andrew's age now
= Callie's age now
= Andrew's age in 3 yrs
= Callie's age in 3 yrs
You can have columns headed , , ,
and the last column is
Under the last column you have for the sum of their ages
Now find with



Now work your way back to the 1st 2 columns

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