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2000 AMC 10 Problems/Problem 4

Revision as of 13:53, 7 January 2009 by BOGTRO (talk | contribs) (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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Let $x$ be the fixed fee, and $y$ be the amount she pays for the minutes she used in the first month.

$x+y=12.48$ $x+2y=17.54$.

$y=5.06$ $x=7.42$.

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