SOLUTION: Today is Jack’s birthday and Jill’s birthday. Jack is five and Jill is nine. How many years ago was Jill twice as old as Jack? When Jack is three quarters as old as Jill, how

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Question 1091572: Today is Jack’s birthday and Jill’s birthday. Jack is five and Jill is nine.
How many years ago was Jill twice as old as Jack?
When Jack is three quarters as old as Jill, how old will Jill be?
When Jill was three times as old as Jack, how old was Jack?
When Jill is four times as old as Jack is today, how old will Jack be?
Answer by josgarithmetic(39615) About Me  (Show Source):
You can put this solution on YOUR website!
5, Jack's age
9, Jill's age


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How many years ago was Jill twice as old as Jack?
9%2Bx=2%285%2Bx%29



When Jack is three quarters as old as Jill, how old will Jill be?
5%2By=%283%2F4%29%289%2By%29
y being "in how many more years"



When Jill was three times as old as Jack, how old was Jack?
9%2Bz=3%285%2Bz%29
.
.
Jack was 2 years old.



When Jill is four times as old as Jack is today, how old will Jack be?
Try this.