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Discount, Sale Price Discount- how much money is SAVED from original price Original Price- the cost of the item before the discount is taken off Sale Price-

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Presentation on theme: "Discount, Sale Price Discount- how much money is SAVED from original price Original Price- the cost of the item before the discount is taken off Sale Price-"— Presentation transcript:

1 Discount, Sale Price Discount- how much money is SAVED from original price Original Price- the cost of the item before the discount is taken off Sale Price- the price after the discount is taken Also referred to the discount price

2 A shirt is priced at 49.99 and on sale for 20% off. What is the sale price? 49.99Original price Steps 1.List original price and label it 2. change % to a decimal and multiply by original price to get discount 3. subtract discount from original price to get sale price X.20 9.9980 49.99 original - 9.99 discount 40.00 sale price

3 I want to buy a pair of CLEAR shoes for 79.99 and it is on sale for 25% off. Find the discount and sale price 79.99 original price X.25 19.9975 79.99 original price -19.99 discount 60.00 sale price

4 I want to buy a shirt for 29.99 and pants for 39.99. Both are on sale for 33% off. Find the discount and sale price There are 2 ways to do this do each item separately add both items then take discount 29.99 shirt +39.99 pants 69.98 X.33 23.0934 69.98 sale price -23.09 discount 46.89 sale price

5 We are buying an ipod 129.99 on sale for 20% off. We also buy the skin for it 19.99 on sale for 30% off. What is the sale price that I pay? This one has to be done separately Think that it should look like a receipt from any store 129.99 orig x.20 25.9980 discount 19.99 orig x.30 5.9970discount 129.99 orig - 25.99 dis 104.00 sale price 19.99 orig - 5.99 dis 14.00 sp + 118.00 sp

6 Now lets talk about tax The type of tax we are going to use is called sales tax It is the amount of money ADDED to the sale price It is usually a different rate in every city

7 A jacket is 99.99 and on sale at 25% off. The tax is 8%. Find the discount, sale price and the total 99.99 original price x.25 24.9975 discount 99.99 original price -24.99 discount 75.00 sale price X.08 6.00 tax 75.00 sale price +6.00 tax 81.00 total To do tax 1.Change % to a decimal 2.Multiply to sale price to get tax 3.Add tax to sale price to get total This is also called subtotal which means the total before tax

8 A dvd player is 49.99 and on sale for 25% off. A home theater system is 399.99 and also on sale for 30% off. Tax is what you pay in your area. What is the discount, sale price, tax, and total for this purchase? 49.99 original price x.25 12.4975 discount 49.99 original -12.49 discount 37.50 sale price 399.99 original x.30 119.9997 discount 399.99 original - 119.99 discount 280.00 sale price

9 317.50 subtotal X.0825 tax rate 23.10 tax 317.50 subtotal +23.10 tax 340.60 total 280.00 sale price of home theater system +37.50 sale price of dvd player 317.50 subtotal For this problem we did 7 different problems to get this answer

10 SIMPLE INTEREST The amount of EXTRA money that someone charges or receives Used in the real world talking about loans, credit cards or savings accounts Joe wants to buy a television. The tv costs $900. Since he does not have the cash to buy it he uses a credit card. The card charges 13% interest. How much will Joe have to pay total for the television?

11 Formula I = PRT Interest= principal times rate times the time Principal- amount of $ either borrowed or saved Rate- the interest rate is the %

12 Joe wants to buy a television. The tv costs $900. Since he does not have the cash to buy it he uses a credit card. The card charges 13% interest for 1 year. How much will Joe have to pay total for the television? Write the formula then replace the letters with numbers and solve I = PRT

13 I bought furniture for 2800, 1000 for the chair and 600 for the ottoman. They have a special interest for 2 years at 3%. What is the total someone would pay? Write formula…… I = PRT Replace the letters with numbers and solve I = 4400(3%)(2) I= 4400(.03)(2) I= 8800(.03) I= 264 to find total we add interest To the principal Total = I + P Total = 264+4400 Total = 4664

14 COMMISSION used in the real world in sales when a salesperson gets a percentage of what they sell the more they sell the more they make Examples of people who work on commission are …. Selling cars, houses, jewelry and other expensive items

15 A salesman sells a camcorder for $999 and gets 8% commission. How much does he make? To do 1.Price times commission % to get commission 999.08 7992.

16 QUIZ 1. A jacket is 129.99 and on sale for 20% off. Tax is 8%. What is the total? 2. What is the subtotal? 3. Find the total for a tv for 899.99 and on sale for 20% off and a dvd for 99.99 with 25% off. Tax is 7% 4. A piece of wood is 12 ½ ft long. How many ¾ pieces are cut from it? 5. A shirt for 39.99 and on sale for 40% off, a belt for 29.99 and on sale for 25% off and a pair of clear shoes for 19.99 for 30% off. What is the total price? 112.32 Price before the tax 850.65 16 2/3 60.50


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