SOLUTION: Rebecca is x years old. Mary is 8 years older than Rebecca. Jill is three times older than Mary. The sum of their ages is 67. Form an equation in terms of x when you find

SOLUTION: Rebecca is x years old. Mary is 8 years older than Rebecca. Jill is three times older than Mary. The sum of their ages is 67. Form an equation in terms of x when you find

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Question 1174061: Rebecca is x years old.
Mary is 8 years older than Rebecca.
Jill is three times older than Mary.
The sum of their ages is 67.
Form an equation in terms of x
when you find x work out how old mary is
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Start with Rebecca, the youngest.
R=x
Mary=x+8
Jill is 3(x+8)=3x+24
They add to 67
so 5x+32=67
x=7 (Rebecca)
Mary is is 15
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