Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-9 Patterns, Equations, and Graphs - Lesson Check - Page 64: 3

Answer

Let x be the number of drinks and y be the cost. Since each drink is the same price, you must multiply \$2.50 by the number of drinks to find the cost. Assume that x is the number of drinks and y is the cost. $2.50x=y$
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Work Step by Step

$\underline {\#drinks}\ \ \ \ \ \ \underline{cost}$ $1\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \$2.50$ $2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \$5.00$ $3\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \$7.50$
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