Algebra 1

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

Chapter 2 - Solving Equations - 2-7 Solving Proportions - Standardized Test Prep: 60

Answer

81 pounds of raisins

Work Step by Step

Set up a ratio comparing the amount of raisins and peanuts in the recipe to the amount of raisins and peanuts needed for the fundraiser. Let x be the unknown amount of raisins. $\frac{3}{2}=\frac{x}{54}\longrightarrow$ cross multiply $2x=3\times54\longrightarrow$ multiply $2x=162\longrightarrow$ divide both side by 2 $2x\div2=162\div2\longrightarrow$ simplify $x=81$
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