80 likes | 193 Vues
Guitars. 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?. EXAMPLE 1. Finding a Sale Price. Subtract the discount from the original price. STEP 2. =. 160 – 48 112.
E N D
Guitars 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? EXAMPLE 1 Finding a Sale Price
Subtract the discount from the original price. STEP 2 = 160 – 48 112 ANSWER The sale price of the guitar is $112. Find the amount of the discount. STEP 1 Discount = 30%of $160 0.3(160) = = 48 EXAMPLE 1 Finding a Sale Price SOLUTION Write 30% as a decimal. Multiply.
Clothing A shirt has a wholesale price of $16. The percent markup is 120%. What is the retail price? STEP 1 Find the amount of the markup. Markup 120%of$16 = 1.2(16) = 19.2 = EXAMPLE 2 Finding a Retail Price SOLUTION Write 120% as a decimal. Multiply.
STEP 2 Add the markup to the wholesale price. 16 19.2 35.2 + = ANSWER The retail price of the shirt is $35.20. EXAMPLE 2 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 STEP 1 Find the amount of the sales tax. 4.5% of $48 2.16 = = 0.045(48) Add the sales tax to the price of the portable CD player. STEP 2 50.16 2.16 + 48 = EXAMPLE 3 Finding a Retail Price SOLUTION
ANSWER The total cost of the CD player is $50.16. EXAMPLE 3 Finding a Retail Price
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 STEP 1 Find the amount of the tip. 0.20(24) 4.8 = 20%of$24 = STEP 2 Find the amount of the sales tax. 1.44 0.06(24) 6%of$24 = = EXAMPLE 4 Solve a Multi-Step Problem SOLUTION
STEP 3 Find the total cost of meal. 30.24 24 + 4.8 +1.44 = ANSWER The total cost of the meal is $30.24. EXAMPLE 4 Solve a Multi-Step Problem