SOLUTION: Appreciate if you can help me with this problem: Katrina is 5 years older than Paula. In 5 years, the age of Paula will be 15 more than half the age of Katrina. How old is katri

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Question 1096054: Appreciate if you can help me with this problem:
Katrina is 5 years older than Paula. In 5 years, the age of Paula will be 15 more than half the age of Katrina. How old is katrina 10 years ago?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
system%28k=p%2B5%2Cp%2B5=%28k%2B5%29%2F2%2B15%29

p=%28k%2B5%29%2F2%2B10
p-10=%28k%2B5%29%2F2
2p-20=k%2B5
2p=k%2B25
2%28k-5%29=k%2B25
2k-10=k%2B25
highlight_green%28k=35%29------Katrina now

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How old is katrina 10 years ago?
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She was 25 years old, ten years ago.