Discount, Tax and Tip

Warm Up1). Mary bought 36 pieces of fruit at the store. If 25% of the fruit was apples, how many apples did she buy?

2). Ken won 15 games of checkers. If he played 35 games, what percent did he win?

3). Joe used 6 pencils, this was 60% of his pack. How many pencils were in the pack?

4). There are 300 students at Valley Middle School. There are 170 boys, what percent of the students are girls?

9 apples

42.9%

10 pencils

43.3%

Sales Tax-an additional amount of money charged on items that people buy. Tax is added.

Example: A graphing calculator costs $95, and the sales tax rate is 6.75%.

What is the sales tax?

What is the total price with tax?

𝑥95=

6.75100

Tax is $6.41

To find the total price you add the tax to the price of the graphing calculator. $101.41

Discount/Markdown- the amount by which the regular price of an item is reduced or lowered. Discount is subtracted.

Example: Alan wants to buy a set of skis that has a regular price of $150. This week, the skis are on sale at 25% discount.

What is the discount or the amount saved?

 What is the new cost of the skis?

𝒙150=

25100$37.50

To find the new cost you subtract $37.50 from the original cost of $150. The new price is $112.50.

Tip-an amount you add to the price of a service that you receive. Tip is added.

Example: Ina went to a restaurant for lunch. Her bill was $10.45, if she leaves a 15% tip how much was the tip?

How much will she pay in total?

𝑥10.45=

15100The tip is $1.57.

To find the total you add 10.45 + 1.57. The total is $ 12.02.

Practice1). Kim wants to buy a sweater that costs $25.00. It goes on sale for 30% off. How much will she pay for the sweater? 2). If Kim has to pay 7% sales tax for her sweater, how much money will she pay in total for the sweater? 

3). Jack bought a notebook for $2.99, a mechanical pencil for $1.50 and some erasers for $0.55. How much will he pay at the register if sales tax is 6.5%?

discount is $7.50 To find the new price you subtract 7.50 from 25. The new price is $17.50.

the tax is $1.23 To find the total price you add the tax to the price of the sweater. 1.23 + 17.50 $18.73 is the price

Add all of the items together to get a total of $5.04. Then find the tax. The tax is $0.33. Add the tax to the $5.04 and the total price is $ 5.37.

Practice4). Julie wanted to tip her hairdresser 20%. If her haircut cost $35, how much did she pay in all?

 

5). Yang went to the store to buy a new video game. The game cost $59.99, but was on sale for 20% off. How much money will he pay in total if the tax is 6.5%?    

tip is $7.00 The total price is $42.00

Find the sale price of the video game first. The discount is $12.00. The new price is $47.99Now find the tax of the sale price. The tax is $3.12.The new price with tax is $ 51.11.

ClosureTell how the following terms are alike and

different.

Discount TaxTip