Difference between revisions of "2000 AMC 10 Problems/Problem 4"
(New page: Let <math>x</math> be the fixed fee, and <math>y</math> be the amount she pays for the minutes she used in the first month. <math>x+y=12.48</math> <math>x+2y=17.54</math>. <math>y=5.06</...) |
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<math>x+y=12.48</math> | <math>x+y=12.48</math> | ||
| − | <math>x+2y=17.54</math> | + | |
| + | <math>x+2y=17.54</math> | ||
<math>y=5.06</math> | <math>y=5.06</math> | ||
| − | <math>x=7.42</math> | + | |
| + | <math>x=7.42</math> | ||
Revision as of 18:02, 8 January 2009
Let 
be the fixed fee, and 
be the amount she pays for the minutes she used in the first month.
