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Can anybody answer these maths questions?

I really need this answered otherwise I'm going to have to work through the Christmas Holidays. They're only sixth grade level.
1. Rick is four years older than Maree. Maree is twice as old as Judie. All there ages add up to 34. How old are each of them?

Thanks heaps,
Seedling02

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Judie is 6, Maree is 12, Rick is 16.

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Judie=x
Maree=2x
Rick=2x+4
(x)+(2x)+(2x+4) -make into equation
5x+4=34 -add like terms
-4 -4 -subtract 4 from both sides
5x=30
---------- -divide by 5
5 = 5
x=6 x=6


Judie=x, so Judy is 6
Maree is 2x, so she would be twice Judy which is 12
Rick is Maree's age +4, so he would be 16
Hope I helped, I tried to show my work as clearly as possible XD

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