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Student Edition - Mathematics in Context - Britannica

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CMany ChangesDesign a SignSave Supermarket is plann<strong>in</strong>g a super sale. They want to design a salesign show<strong>in</strong>g the produce prices. Ms. Vander gives these discounts.GrapesWere $3.20/kgNow 25% offGranny Smith ApplesWere $2.89/kgNow 20% offRed Delicious ApplesWere $2.40/kgNow 15% off1. Are these good sales for customers?GRAPESWere $3.20 per kgNow 25% offThe employees bra<strong>in</strong>storm about what to write on the sale signs.0 $3.2025% off0% 100%Bert sketched this sign for grapes. He used apercent discount and a percent bar to visuallyshow the relationship between the orig<strong>in</strong>alprice and the discount price.2. Sketch signs for Granny Smith and RedDelicious apples us<strong>in</strong>g Bert’s suggestions.Janice proposes that they <strong>in</strong>clude fractions <strong>in</strong>stead of percents. Shebelieves customers can estimate the discounts more easily if theyuse fractions.3. a. Reflect Do you agree with Janice? Defend your position.b. Draw one sign us<strong>in</strong>g Janice’s suggestion.18 More or Less

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