Difference between revisions of "2000 AMC 10 Problems/Problem 4"

Revision as of 18:32, 8 January 2009

Let $x$ be the fixed fee, and $y$ be the amount she pays for the minutes she used in the first month.

$x+y=12.48$

$x+2y=17.54$

$y=5.06$

$x=7.42$

2000 AMC 10 (Problems • Answer Key • Resources)
Preceded by Problem 3	Followed by Problem 5
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25
All AMC 10 Problems and Solutions

@@ Line 1: / Line 1: @@
+==Problem==
+==Solution==
 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.
@@ Line 8: / Line 12: @@
 <math>x=7.42</math>
+==See Also==
+{{AMC10 box|year=2000|num-b=3|num-a=5}}