8 5 Sales Tax Discount Pages 354 357

8 -5 Sales Tax & Discount Pages 354 -357 Indicator (s) N 8 Develop and analyze algorithms for computing with percent and demonstrate fluency in use.

8 -5 Sales Tax • Sales tax is an additional amount of money charged on items that people buy. • Local, state, and federal government receives this money • The total cost of an item is the regular price PLUS the sales tax (increase in cost). · Remember- In real life, tax is always rounded up to the next cent.

How to find sales tax… A set of golf balls sells for $19. 98 and the sales tax is 5. 75%. What is the total cost of the set? First, find the sales tax. 5. 75% of 19. 98= 0. 0575 · 19. 98= Sales tax = 1. 15 Next, add the sales tax to the regular price. 1. 15 + 19. 98= 21. 13 Last, write a sentence to answer the question. The total cost of the golf balls is $21. 13.

8 -5 Discount (part 1) • You are buying a hoodie that has a price of $39. 60. Aeropostle is having a 33% off sale (discount). What is the cost of the hoodie? 0. 33 × 39. 60 = 13. 068 – Find 33% of $39. 60. – Round to the nearest cent. $13. 07 – Subtract the discount from the original price. $39. 60 – 13. 07 = $26. 53 – Write a sentence. The hoodie will cost $26. 53 after the 33% discount.

8 -5 Discount • Is the amount by which the regular price of an item is reduced. • The sale price is the regular price MINUS the discount (decrease in cost). • Once you have found the discount, make sure that you change the decimal to a percent.

How to find percent of discount… A sports watch with an original price of $86 is on sale for $60. 20. What is the percent of discount? First, find the AMOUNT of discount (original – sale). 86 – 60. 20 = 25. 80 Next, use the percent equation to find the percent discount. (This is the same as finding the percent decrease. ) Words Variable Equation Solve Final Answer $25. 80 is what percent of $86? Let p represent the percent. 25. 80 = p · 86 86 86 = 0. 3 = p Don’t forget to change the decimal to a percent. The percent of discount is 30%.

Multi-step • Think back to the hoodie that you were buying from Aeropostle. . . • The price of the hoodie is • Now, let’s figure the total cost after sales tax… • 6. 5% Sales Tax • Find 6. 5% of 26. 53. 0. 065 × 26. 53= 1. 72445 $39. 60. • The discount is 33% off. • Round to the nearest cent. $1. 72 We found that the hoodie • will cost $26. 53 after the 33% discount. Add the sales tax to the Sale Price. $1. 72 + 26. 53 = $28. 25

Homework • 8 -5 • P. 356 -357 • #17 -42 all, omit 30