SOLUTION: Janet is three times as old as her daughter, Mary.Five years ago, Janetwas 4 times as old as Mary. How old is Janet now? How old willbe Mary in 7 years time?

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Question 473519: Janet is three times as old as her daughter, Mary.Five years ago, Janetwas 4 times as old as Mary. How old is Janet now? How old willbe Mary in 7 years time?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
j=3m
j-5=4(m-5)
3m-5=4m-20
m=15
j=45
Janet is 45. Mary will be 22 in 7 years..