Student Edition - Mathematics in Context - Britannica

CMany ChangesMs. Jao decided to use percents to change the prices of some itemsin her store. She made this table.New Price asProduct Old Price Change New Price Percentage ofOld PriceWhole Milk $2.10 –10% 90%Frozen Dinner $4.68 –25%Roasted Turkey $13.25 +25%6 Cans of Juice $2.98 –5%Canned Salmon $3.60 +15%13. Use Student Activity Sheet 5 to fill in the columns labeled“New Price” and “New Price as Percentage of Old Price.”14. Describe and compare two ways of finding the sale price ofcookies that normally sell for $4.98 but are now 15% off.While Ms. Jao was working in her office, her two children, Jim andMichelle, came by to visit. She decided to take a break and have aglass of lemonade with them.The children discussed the amount of lemonade in their glasses.“You have25% morethan I do!”“No! You haveonly 20% lessthan I do!”15. a. Reflect Do you agree with Jim or Michelle?Defend your position.b. Can the other person also be right? Why?22 More or Less