SOLUTION: 8 coins total $1.45. No 50 cent piece. Lose one. Same % of all 3 coins? What did you lose?

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Question 899309: 8 coins total $1.45. No 50 cent piece. Lose one. Same % of all 3 coins? What did you lose?

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
x+y+z=8,
5x+10y+25z=145
5*25+1*10+2*5
125+10+10

I have no idea what "Same % of all 3 coins?" means