SOLUTION: in 18 years jenny will be three times as old as she is now. How old is she?
Algebra.Com
Question 369445: in 18 years jenny will be three times as old as she is now. How old is she?
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
Let j = age now.
Then 3j = j +18.
2j = 18,
j = 9.
RELATED QUESTIONS
matthew is 3 times as old as jenny. In 7 years he will be twice as old as she will be... (answered by solver91311)
Matthew is 3 times as old as Jenny. In 7 years, he will be twice as old as she will be... (answered by ankor@dixie-net.com)
Matthew is 3 times as old as jenny. In 7 years, he will be twice as old as she will be... (answered by checkley77)
Matthew is 3 times as old as Jenny. In 7 years, he will be twice as old as she will be... (answered by vleith)
Matthew is 3 times as old as Jenny. In 7 years, he will be twice as old as she will be... (answered by stanbon,robertb)
A mother is three times as old as her son. In 18 years time, she will be twice as old as... (answered by ikleyn,MathLover1,MathTherapy)
Jenny is three times as old as Sarah. In 12 years Jenny will be twice as old as Sarah is... (answered by flame8855)
In 5 years jenny will be two thirds as old as her aunt. Three years ago she was half as... (answered by TimothyLamb)