



 
Hi Mike, Suppose Emma is E years old today and her mother is M years old. Since Emma's mother is 4 times as ld as Emma, \[M = 4 \times E.\] How old will Emma be in 4 years? How old will her mother be? At that time Emma's mother will be three times as old as Emma. This gives you a second equation. Solve the equations for E and M. Check your answer. Penny  


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