SOLUTION: Peter is three times as old as Carlo. Carlo is four years older than Jay. In twenty years, Peter will be twice as old as Jay. How old are Jay, Carlo, and Peter now?

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Question 1098823: Peter is three times as old as Carlo. Carlo is four years older than Jay. In twenty years, Peter will be twice as old as Jay. How old are Jay, Carlo, and Peter now?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
system%28p=3c%2Cc=j%2B4%2Cp%2B20=2%28j%2B20%29%29
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system%28p=3j%2B12%2Cp%2B20=2j%2B40%29

system%28p-3j=12%2Cp-2j=20%29

subtract...
j=20-12
highlight_green%28j=8%29
-
highlight_green%28c=12%29
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highlight_green%28p=36%29