EXAMPLE 1 Finding a Sale Price

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Presentation transcript:

EXAMPLE 1 Finding a Sale Price You are shopping for a guitar and find one with an original price of $160. The store is offering a 30% discount on all guitars. What is the sale price of the guitar? Guitars

Find the amount of the discount. EXAMPLE 1 Finding a Sale Price SOLUTION STEP 1 Find the amount of the discount. Discount = 30% of $160 0.3(160) = Write 30% as a decimal. 48 = Multiply. STEP 2 Subtract the discount from the original price. 160 – 48 112 = ANSWER The sale price of the guitar is $112.

Find the amount of the markup. EXAMPLE 2 Finding a Retail Price Clothing A shirt has a wholesale price of $16. The percent markup is 120%. What is the retail price? SOLUTION STEP 1 Find the amount of the markup. Markup 120% of $16 = 1.2(16) = Write 120% as a decimal. 19.2 = Multiply.

EXAMPLE 2 Finding a Retail Price Add the markup to the wholesale price. STEP 2 16 + 19.2 35.2 = The retail price of the shirt is $35.20. ANSWER

EXAMPLE 3 Finding a Retail Price A portable CD player costs $48 before tax. The sales tax is 4.5%. What is the total cost? CD Player SOLUTION STEP 1 Find the amount of the sales tax. 4.5% of $48 = 0.045(48) 2.16 STEP 2 Add the sales tax to the price of the portable CD player. 2.16 + 48 = 50.16

EXAMPLE 3 Finding a Retail Price ANSWER The total cost of the CD player is $50.16.

EXAMPLE 4 Solve a Multi-Step Problem Your food bill at a restaurant is $24. You leave a 20% tip. The sales tax is 6%. What is the total cost of the meal? Restaurants SOLUTION STEP 1 Find the amount of the tip. 20% of $24 = 0.20(24) 4.8 STEP 2 Find the amount of the sales tax. 6% of $24 = 0.06(24) 1.44

EXAMPLE 4 Solve a Multi-Step Problem STEP 3 Find the total cost of meal. 24 + 4.8 +1.44 = 30.24 The total cost of the meal is $30.24. ANSWER