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Revision as of 20:43, 3 August 2006
Problem
While eating out, Mike and Joe each tipped their server 
. Mike tipped $10%$ (Error compiling LaTeX. Unknown error_msg) of his bll and Joe tipped $20%$ (Error compiling LaTeX. Unknown error_msg) of his bill. What was the difference, in dollars between their bills?
Solution
Let 
be Mike's bill and 
be Joe's bill.
So the desired difference is 
