SOLUTION: Rachel is a third of her dads age, in 13 years she will be half her age. Find the age of Rachel and her dad

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Question 1074116: Rachel is a third of her dads age, in 13 years she will be half her age. Find the age of Rachel and her dad
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52799) About Me  (Show Source):
You can put this solution on YOUR website!
.
This fragment is nonsense: "in 13 years she will be half her age."

Revise, edit, re-post.



Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Change to this way:
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Rachel is a third of her dads age, in 13 years she will be half her HIS age. Find the age of Rachel and her dad.
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r, Rachel's age
d, Dad's age

Translate the description:
system%28r=d%2F3%2Cr%2B13=%28d%2B13%29%2F2%29

Substitute and solve:
d%2F3%2B13=%28d%2B13%29%2F2
2d%2B6%2A13=3d%2B3%2A13

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d=13%286-3%29
d=13%2A3

highlight%28system%28d=39%2Cr=13%29%29