Percent Applications Lesson 3.4 Core Focus on Ratios, Rates and Statistics.

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Percent Applications Lesson 3.4 Core Focus on Ratios, Rates and Statistics

Solve each percent problem. 1.15% of 20 is ______. 2.______ is 40% of ______ is 10% of $50. Warm-Up 3 14 $5

Percent Applications Solve problems involving discounts, tips and tax. Lesson 3.4

Discount The amount of money subtracted from the original price of an item to give you the sale price. A discount is based on a certain percent off the original price of an item. Sales tax An amount added to the cost of an item. The amount added is a percent of the original amount as determined by a state, county or city. Vocabulary

Anna ordered a new vacuum cleaner with an original price of $98. The vacuum cleaner was on sale for 20% off. a. What was the value of the discount? Write the problem.20% of $98 is what? Convert words to a math expression0.20  98 = 19.6 and simplify. The value of the discount was $ Example 1

Anna ordered a new vacuum cleaner with an original price of $98. The vacuum cleaner was on sale for 20% off. b. What was the sale price of the vacuum cleaner? Anna saved $19.60 when she ordered the vacuum cleaner. Find the amount she paid by subtracting98.00 the amount she saved from the total.– The sale price of the vacuum cleaner was $ Example 1 Continued…

Bryan went to the mall to buy a new video game. When he got to the store he found there was a sale. The game was originally $ It had a sticker which read “10% off the original price!” What was the value of the discount? Write the problem.10% of is what? Convert the words to a math problem.0.10  = Round to the nearest cent.$2.999  $3.00 The value of the discount was $3.00 Example 2

Step 1Nina orders chicken, baked beans and a soda. What would be the cost of her meal? Step 2Cameron orders ribs, coleslaw, a roll and a soda. What would be the cost of his meal? Nina and Cameron went to Billy’s BBQ for lunch. The menu items are shown below. Step 3A tip for a server is based on the amount of the bill. It is common to leave 15% of the total bill as a tip. Find the amount Nina should leave as a tip following the 15% rule.

Step 4Find the amount Cameron should leave as a 15% tip. Step 5Cameron pays for both meals. Billy was an excellent server so Cameron leaves a 20% tip. How much did Cameron leave as a tip? Step 6What was the total cost for both meals and a 20% tip? Nina and Cameron went to Billy’s BBQ for lunch. The menu items are shown below.

Jose traveled to Florida to visit family. While in Florida he bought a t-shirt priced at $ The sales tax in Florida was 6%. a. How much sales tax did he pay for the shirt? Write the problem.6% of $25.00 is what? Solve the percent problem.0.06  = 1.5 Jose will pay an additional $1.50 in sales tax. b.What was the total amount he paid for the shirt? Add the tax to the original price The total amount for the shirt, including tax, was $ Example 3

What are the benefits for a state with a sales tax? Communication Prompt

1.Denise bought a treadmill that was originally priced at $200 but was 25% off. a)How much was the discount on the treadmill? b)What was the sale price for the treadmill? 2.Quinn went to lunch and had a bill of $ Find the amount of money he left as a tip if he tipped 15%. Exit Problems $50 $150 $2.40