Student Edition - Mathematics in Context - Britannica

Many ChangesCAfter they finished their lemonade, Jim and Michelle went to Dale’sDepartment Store to buy a birthday present for their friend Puno.Jim and Michelle agreed on a gift and took it to the cashier to maketheir purchase. The cashier made a mistake and gave them a 20%discount. When she caught her mistake, she decided to just add 20%of the total back on.16. a. Do you think adding 20% of the total price corrects themistake?b. Copy and fill in the receipt.Dale’s Department StoreNontaxableMerchandise . . . . . . . . . . . . . $23.70–20% . . . . . . . . . . . . . . . . . . . . . . $______TOTAL . . . . . . . . . . . . . . . . . . . . . $______+20% . . . . . . . . . . . . . . . . . . . . . $______TOTAL . . . . . . . . . . . . . . . . . . . . $______17. Explain the effect of subtracting 20% of the price and thenadding 20% of that total price back.Dale reminded his employees to check the sale prices, using thepercent discount and the sale price.18. Find the original price of a T-shirt with a 20% discount and asale price of $15.Section C: Many Changes 23