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Lesson 8-10

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Objectives By the end of this lesson you will be able… Solve percent problems that involve discounts, tips, and sales, tax.

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What is a Formula? 3 Formulas we are going to be working with today Discounts Step 1: Discount=price discount rate Step 2: Total Cost= price – discount Tips Step 1: Tip=bill tip rate Step 2: Total Cost=bill + tip Sales Tax Step 1: Sales Tax=price sales tax rate Step 2: Total Cost= price + sales tax

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Practice Formulas Discounts Step 1: Discount=price discount rate Step 2: Total Cost= price – discount Tips Step 1: Tip=bill tip rate Step 2: Total Cost=bill + tip Sales Tax Step 1: Sales Tax=price sales tax rate Step 2: Total Cost= price + sales tax A music store sign reads 10% off the regular price. if Nichole wants to buy a CD whose regular price is $14.99, about how much will she pay for her CD after the discount?

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Practice Discounts Step 1: Discount=price discount rate Step 2: Total Cost= price – discount A music store sign reads 10% off the regular price. if Nichole wants to buy a CD whose regular price is $14.99, about how much will she pay for her CD after the discount?

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Practice Formulas Discounts Step 1: Discount=price discount rate Step 2: Total Cost= price – discount Tips Step 1: Tip=bill tip rate Step 2: Total Cost=bill + tip Sales Tax Step 1: Sales Tax=price sales tax rate Step 2: Total Cost= price + sales tax Leslies lunch bill is $13.95. She wants to leave a tip that is 15% of the bill. About how much should her tip be?

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Practice Tips Step 1: Tip=bill tip rate Step 2: Total Cost=bill + tip Leslies lunch bill is $13.95. She wants to leave a tip that is 15% of the bill. About how much should her tip be?

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Practice Formulas Discounts Step 1: Discount=price discount rate Step 2: Total Cost= price – discount Tips Step 1: Tip=bill tip rate Step 2: Total Cost=bill + tip Sales Tax Step 1: Sales Tax=price sales tax rate Step 2: Total Cost= price + sales tax Marc is buying a scooter for $79.65. The sales tax rate is 6%. About how much will the total cost of the scooter be?

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Practice Sales Tax Step 1: Sales Tax=price sales tax rate Step 2: Total Cost= price + sales tax Marc is buying a scooter for $79.65. The sales tax rate is 6%. About how much will the total cost of the scooter be?

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Review In this lesson you have learned how to… Solve percent problems that involve discounts, tips, and sales, tax. Check for understanding (3, 2, 1)

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2.5 Application of Percents. Key words: –“of” means “multiply” –“is” means “= ” –“what number?” means “x” To convert a decimal number to %, move the decimal.

2.5 Application of Percents. Key words: –“of” means “multiply” –“is” means “= ” –“what number?” means “x” To convert a decimal number to %, move the decimal.

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