Click the mouse button or press the Click the mouse button or press the Space Bar to display the answers.Space Bar to display the answers.

Objective

Solve problems involving sales tax and discount

Vocabulary

Sales tax

An additional amount of money charged on items that people buy

Vocabulary

Discount

The amount by which the regular price of an item is reduced

Example 1 Find the Total Cost

Example 2 Find the Total Cost

Example 3 Find the Sale Price

Example 4 Find the Percent of Discount

GOLF A set of golf balls sells for $20 and the sales tax is 5.75%. What is the total cost of the set?

Must find the total cost

To do this, must find how much tax is being charged first

1/4

What is the total cost

Write percent equation using tax as the part

Tax = Percent of Total

Replace percent with 0.0575

Tax = 0.0575

Replace total with the cost of the golf balls $20

$20

GOLF A set of golf balls sells for $20 and the sales tax is 5.75%. What is the total cost of the set?

Multiply

1/4

Tax = Percent of Total

Tax = 0.0575 $20

Tax = $1.15To find the total cost, must add the cost of the golf balls with the tax

golf balls sells for $20

Total Cost = $20 + $1.15Add

Total Cost = $21.15Answer:

BOOKS A set of three paperback books sells for $35 and the sales tax is 7%. What is the total cost of the set?

Answer: total cost = $37.45

1/4

TENNIS What is the total cost of a tennis racket if the

regular price is $130 and the sales tax is ?

Tax = 6 ½ %

2/4

Must find the total cost

What is the total cost

To do this, must find how much tax is being charged first

Write percent equation using tax as the part

Tax = Percent of Total

Replace percent with 0.0650

Replace total with the cost of the tennis racket $130

$130

TENNIS What is the total cost of a tennis racket if the

regular price is $130 and the sales tax is ?

Answer:

Tax = 6 ½ %

Total price = $130 + $8.45

Tax = $8.45

Total price = $138.45

2/4

What is the total cost

Tax = Percent of Total

$130

Multiply

To find the total cost, must add the cost of the golf balls with the tax

Add

Answer: total cost = $63.30

BOOTS What is the total cost of a pair of boots if the

regular price is $60 and the sales tax is %?

2/4

MULTIPLE-CHOICE TEST ITEM Whitney wants to buy a new coat that has a regular price of $185. This weekend, the coat is on sale at a 33% discount. What is the sale price of the coat?

A $61.05 B $123.95 C $152.00 D $246.05

3/4

Must find the sale price

sale price

To do this, must find how much the discount is

Write percent equation using discount as the part

Discount = Percent of Total

MULTIPLE-CHOICE TEST ITEM Whitney wants to buy a new coat that has a regular price of $185. This weekend, the coat is on sale at a 33% discount. What is the sale price of the coat?

A $61.05 B $123.95 C $152.00 D $246.05

Discount = 0.33

Discount = $61.05

3/4

sale price

Discount = Percent of Total Replace percent with 0.33

Replace total with the cost of the coat $185

$185

Multiply

MULTIPLE-CHOICE TEST ITEM Whitney wants to buy a new coat that has a regular price of $185. This weekend, the coat is on sale at a 33% discount. What is the sale price of the coat?

A $61.05 B $123.95 C $152.00 D $246.05

Discount = 0.33

Discount = $61.05

3/4

sale price

Discount = Percent of Total

$185

To find sale price, must subtract the cost of the coat with the discount

Sale price = $185 - $61.05

Subtract

Sales price = $123.95

Choose the appropriate multiple choice answer

Answer: B

MULTIPLE-CHOICE TEST ITEM Alex wants to buy a DVD player that has a regular price of $175. This weekend, the DVD player is on sale at a 20% discount. What is the sale price of the DVD player?

A $35 B $210 C $171.50 D $140

Answer: D

3/4

WATCHES A sports watch with an original price of $86 is on sale for $60.20. What is the percent of discount?

Discount = original price - sales price

Discount = $86 - $60.20

Discount = $25.80

4/4

Must find percent of discount

To do this, must find how much the discount is by subtracting original price by sales priceReplace original price with $86

Replace sales price with $60.20

Subtract

WATCHES A sports watch with an original price of $86 is on sale for $60.20. What is the percent of discount?

Discount = $86 - $60.20

Discount = $25.80

4/4

Write the percent equation using discount as the part

Discount = Percent of Total Replace discount with $25.80

$25.80 Define the variable as the percent

= P

Replace total with original cost of watch $86

$86

WATCHES A sports watch with an original price of $86 is on sale for $60.20. What is the percent of discount?

Discount = $86 - $60.20

Discount = $25.80

4/4

Ask “what is being done to the variable?”

Discount = Percent of Total

$25.80 = P $86

The variable is being multiplied by 86

Do the inverse on both sides of the equal sign

Bring down $25.80 = P $86$25.80 = P $86

Using a fraction bar, divide both sides by $86

$86 $86

WATCHES A sports watch with an original price of $86 is on sale for $60.20. What is the percent of discount?

Discount = $86 - $60.20

Discount = $25.80

4/4

Combine “like” terms

Discount = Percent of Total

$25.80 = P $86

$25.80 = P $86$86 $86

0.30

Use the Identity Property to multiply P 1

= P 10.30 = P

Remember: variable is percent so multiply by 100 and add the % sign

30% = PAnswer:

FURNITURE A rocking chair with an original price of $375 is on sale for $318.75. What is the percent of discount?

Answer: P = 15%

*

4/4

Assignment

Lesson 8:5 Sales Tax and Discount 11 - 26 All