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

EXAMPLE 1 Finding a Sale Price

STEP 2 Subtract the discount from the original price.

160 – 48 112=

ANSWER

The sale price of the guitar is $112.

SOLUTION

STEP 1 Find the amount of the discount.

48=Write 30% as a decimal.

Multiply.

Discount = 30% of $1600.3(160)=

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)=

19.2=

Write 120% as a decimal.

Multiply.

EXAMPLE 2

Add the markup to the wholesale price.STEP 2

16 + 19.2 35.2=

The retail price of the shirt is $35.20.

ANSWER

Finding a Retail Price

EXAMPLE 3

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

Finding a Retail Price

EXAMPLE 3

ANSWER

The total cost of the CD player is $50.16.

Finding a Retail Price

EXAMPLE 4 Solve a Multi-Step Problem

SOLUTION

STEP 1 Find the amount of the tip.

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

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