5 Minute Check Find the percent of change. Round to the whole percent, if necessary. Complete on the back of your homework. 1. $12 to $6 2. 48 notebooks.

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Presentation transcript:

5 Minute Check Find the percent of change. Round to the whole percent, if necessary. Complete on the back of your homework. 1. $12 to $6 2. 48 notebooks to 16 notebooks 3. $240 to $320 4. 624 ft to 702 ft

5 Minute Check Find the percent of change. Round to the whole percent, if necessary. Complete on the back of your homework. 1. $12 to $6

5 Minute Check Find the percent of change. Round to the whole percent, if necessary. Complete on the back of your homework. 1. $12 to $6 Amount of change = 6 – 12 = -6 = −$6 $12 = - 1 2 = 50% decrease

5 Minute Check Find the percent of change. Round to the whole percent, if necessary. Complete on the back of your homework. 2. 48 notebooks to 16 notebooks

5 Minute Check Find the percent of change. Round to the whole percent, if necessary. Complete on the back of your homework. 2. 48 notebooks to 16 notebooks Amount of change = 16 – 48 = -32 = −32 48 = - 2 3 = 67% decrease

5 Minute Check Find the percent of change. Round to the whole percent, if necessary. Complete on the back of your homework. 3. $240 to $320

5 Minute Check Find the percent of change. Round to the whole percent, if necessary. Complete on the back of your homework. 3. $240 to $320 Amount of change = 320 – 240 = 80 = 80 240 = 1 3 = 33% increase

5 Minute Check Find the percent of change. Round to the whole percent, if necessary. Complete on the back of your homework. 4. 624 ft to 702 ft

5 Minute Check Find the percent of change. Round to the whole percent, if necessary. Complete on the back of your homework. 4. 624 ft to 702 ft Amount of change = 702 – 624 = 78 = 78 624 = 1 8 = 13% increase

Lesson 7.2.6/7.2.7 Sales Tax, Tips and Markup And Discounts Tuesday, Feb 3 Lesson 7.2.6/7.2.7 Sales Tax, Tips and Markup And Discounts

Solve One-Step Inequalities

Solve One-Step Inequalities

Solve One-Step Inequalities

Solve One-Step Inequalities

Solve One-Step Inequalities

Solve One-Step Inequalities

Solve One-Step Inequalities

Solve One-Step Inequalities

Solve One-Step Inequalities

Solve One-Step Inequalities

Sales Tax, Tips and Markup Objective: To solve problems involving sales tax, tips, markup and discounts.

Sales Tax, Tips and Markup Sales tax is an additional amount of money charged on items that people buy. The total cost of an item is the regular price plus the sales tax. Sales tax is added onto the price of the item.

Sales Tax, Tips and Markup Drew wants to buy exercise equipment that costs $140 and the sales tax is 5%. What is the total cost of the equipment? We can use the same formula we used before to determine the tax. part = percent (in decimal form) x whole What is the tax in decimal form?

Sales Tax, Tips and Markup Drew wants to buy exercise equipment that costs $140 and the sales tax is 5%. What is the total cost of the equipment? We can use the same formula we used before to determine the tax. part = percent (in decimal form) x whole part = 0.05 · 140 = 7 What is the total?

Sales Tax, Tips and Markup Drew wants to buy exercise equipment that costs $140 and the sales tax is 5%. What is the total cost of the equipment? Then to find the total we would add the tax unto the price. part = 0.5 · 140 = 7 7 + 140 = $147

Sales Tax, Tips and Markup Drew wants to buy exercise equipment that costs $140 and the sales tax is 5%. What is the total cost of the equipment? Is there an easier way to do this? part = 0.5 · 140 = 7 + 140 = $147

Sales Tax, Tips and Markup Drew wants to buy exercise equipment that costs $140 and the sales tax is 5%. What is the total cost of the equipment? Since we are paying 100% of the price and 5% tax, that equals 105%. part = percent (in decimal form) x whole

Sales Tax, Tips and Markup Drew wants to buy exercise equipment that costs $140 and the sales tax is 5%. What is the total cost of the equipment? Since we are paying 100% of the price and 5% tax, that equals 105%. part = percent (in decimal form) x whole part = 1.05 · 140 = $147

Sales Tax, Tips and Markup What is the total cost of a sweatshirt if the regular price is $42 and the tax is 7%? Do this on your own.

Sales Tax, Tips and Markup What is the total cost of a sweatshirt if the regular price is $42 and the tax is 7%? Since we are paying 100% of the price and 7% tax, that equals 107%. part = percent (in decimal form) x whole part = 1.07 · 42 = $44.94

Sales Tax, Tips and Markup What is the total cost of a $2.95 notebook if the tax is 5%? Do this on your own.

Sales Tax, Tips and Markup What is the total cost of a $2.95 notebook if the tax is 5%? Since we are paying 100% of the price and 5% tax, that equals 105%. part = percent (in decimal form) x whole part = 1.05 · 2.95 = $3.10

Sales Tax, Tips and Markup A tip or gratuity is a small amount of money in return for a service. The total price is the regular price of the service plus the tip. A tip or gratuity is added onto the price of the item.

Sales Tax, Tips and Markup A customer wants to tip 15% on a restaurant bill that is $35. What will be the total bill with tip? Do this on your own.

Sales Tax, Tips and Markup A customer wants to tip 15% on a restaurant bill that is $35. What will be the total bill with tip? Since we are paying 100% of the bill and a 15% tip, that equals 115%. part = percent (in decimal form) x whole part = 1.15 · 35 = $40.25

Sales Tax, Tips and Markup A haircut costs $20. Sales tax is 5% Is $25 sufficient to cover the haircut with tax and a 15% tip? Do this on your own.

Sales Tax, Tips and Markup A haircut costs $20. Sales tax is 5% Is $25 sufficient to cover the haircut with tax and a 15% tip? 100% + 15% + 5% = 120$ part = percent (in decimal form) x whole part = 1.20 · 20 = $24.00 Yes, $25 is enough.

Sales Tax, Tips and Markup A store selling items for more than it pays for those items. The amount of increase is called the markup. The selling price is the amount the customer pays for an item. A markup is added onto the price of the item.

Sales Tax, Tips and Markup A store pays $56 for a GPS navigation system. The markup is 25%. Find the selling price. Do this on your own.

Sales Tax, Tips and Markup A store pays $56 for a GPS navigation system. The markup is 25%. Find the selling price. 100% + 25% = 125% part = percent (in decimal form) x whole part = 1.25 · 56 = $70

Discounts A discount or markdown is the amount by which the regular price of an item is reduced. The sales price is the regular price minus the discount. A discount or markdown is subtracted from the price of the item.

Discounts A DVD normally costs $22. This week it is on sale for 25% off the original price. What is the sale price of the DVD? Do this on your own.

Discounts A DVD normally costs $22. This week it is on sale for 25% off the original price. What is the sale price of the DVD? 100% - 25% = 75% part = percent (in decimal form) x whole part = .75 · 22 = $16.50

Discounts A shirt is regularly priced at $42. It is on sale for 15% off of the regular price. What is the sale price of the shirt? Do this on your own.

Discounts A shirt is regularly priced at $42. It is on sale for 15% off of the regular price. What is the sale price of the shirt? 100% - 15% = 85% part = percent (in decimal form) x whole part = .85 · 42 = $35.70

Discounts A boogie board that has a regular price of $69 is on sale at a 35% discount. What is the sale price with 7% tax? Do this on your own.

Discounts A boogie board that has a regular price of $69 is on sale at a 35% discount. What is the sale price with 7% tax? 100% - 35% + 7%= 72% part = percent (in decimal form) x whole part = .72 · 69 = $49.68

Not So Fast! Tax is not paid on the regular price! Discounts A boogie board that has a regular price of $69 is on sale at a 35% discount. What is the sale price with 7% tax? 100% - 35% + 7%= 72% part = percent (in decimal form) x whole part = .72 · 69 = $49.68 Tax is not paid on the regular price! Not So Fast!

Discounts A boogie board that has a regular price of $69 is on sale at a 35% discount. What is the sale price with 7% tax? 100% - 35% = 65% part = percent (in decimal form) x whole part = .65 · 69 = $44.85 (sale price)

Discounts A boogie board that has a regular price of $69 is on sale at a 35% discount. What is the sale price with 7% tax? 100% - 35% = 65% part = percent (in decimal form) x whole part = .65 · 69 = $44.85 (sale price) 100% + 7% = 107% part = 1.07 · 44.85 = $47.99

Discounts A CD that has a regular price of $15 is on sale at a 25% discount. What is the sale price with 6% tax? Do this on your own.

Discounts A CD that has a regular price of $15 is on sale at a 25% discount. What is the sale price with 6% tax? 100% - 25% = 75% part = percent (in decimal form) x whole part = .75 · 15 = $11.25 (sale price) 100% + 6% = 106% part = 1.06 · 11.25 = $11.93

Sales Tax, Tips and Markup Johanna’s parents give her $10 per week for lunch money. The Leather Depot buys a coat from a supplier for $90 wholesale and marks up the price by 40%. If you buy the coat for $134.82, with sales tax, what is the percentage of the sales tax?

Sales Tax, Tips and Markup Johanna’s parents give her $10 per week for lunch money. The Leather Depot buys a coat from a supplier for $90 wholesale and marks up the price by 40%. If you buy the coat for $134.82, with sales tax, what is the percentage of the sales tax? 90 · 1.40 = 126 retail price 134.82 – 126 = 8.82 amount of tax part = percent (in decimal form) x whole 8.82 = p · 126 126 126 .07 = w 7% .07 126)8.82 -882

Sales Tax, Tips and Markup Johanna’s parents give her $10 per week for lunch money. A store is having a sale in which all items are discounted 20%. Including tax, Colin paid $21 for a picture. If the sales tax rate is 5%, what was the original price of the picture?

Sales Tax, Tips and Markup Johanna’s parents give her $10 per week for lunch money. A store is having a sale in which all items are discounted 20%. Including tax, Colin paid $21 for a picture. If the sales tax rate is 5%, what was the original price of the picture? 100% + 5% = 105% part = percent (in decimal form) x whole 21 = 1.05 · w 1.05 1.05 20 = w = (he paid $20, before tax) 100% - 20% = 80% 20 = .8 · w .8 .8 25 = w

Sales Tax, Tips and Markup Agenda Notes Homework Practice 7.2.6/7.2.7 Show all work and circle all answers. Due Wednesday, Feb 4 Chapter 7.2/7.3 Test - Tuesday, Feb 10