2011 AMC 10A Problems/Problem 1

Revision as of 06:45, 10 February 2011 by AlphaMath1 (talk | contribs) (Problem 1)

Problem 1

A cell phone plan costs $$$20$ each month, plus $5$¢ per text message sent, plus 10¢ for each minute used over $30$ hours. In January Michelle sent $100$ text messages and talked for $30.5$ hours. How much did she have to pay?

$\textbf{(A)}$ $24.00 \qquad\textbf{(B)}$ $24.50 \qquad\textbf{(C)}$ $25.50\qquad\textbf{(D)}$ $28.00\qquad\textbf{(E)}$ $30.00$

Solution