Today’s Lesson:

What: Consumer Applications

Why: To solve problems involving

tax, tips, discounts, etc.

A consumer is someone who __________________________ goods/ services at a variety of stores/businesses.

Things for a consumer to consider are:

Taxes (_____________ to the purchase)

Discounts (_____________ from the purchase)

Tips (________________ to the purchase)

What’s a consumer?

purchases

add

subtract

add

When calculating the tax, discount, or tip, we always need to find the part out of the total for various different ________________________.

There are 2 ways to do this:

1) the percent proportion formula

( = ), OR

2) the multiplication method (change % to a decimal and multiply).

percentages

For example:You are at Target. Your total, before tax, is $28.50. If the sales tax is 6%, what is your total, including the tax?

There are 2 ways to solve above problem:

Percent Proportion:

=

Multiplication Method:

1) Change % to a decimal, &

2) Multiply original price by the decimal.

6% = 0.06 as a decimal

28.5x .06

Store Scenarios:

1) The sub-total (original price) of your purchase is $54.50. There is a 30% discount. What is the sale price?

2) The sub-total (original price) of your purchase is $98.25. There is a 45% discount. What is the discount only?

Tip: Add Discount: Subtract

Tax: Add

$38.15

$44.21

3) The sub-total (original price) of your purchase is $74.80. The sales tax is 5%. What is your total?

Tip: Add Discount: Subtract

Tax: Add

4) The sub-total (original price)of your purchase is $102.75. The sales tax is 6%. What is the tax only?

$78.54

$6.17

Restaurant scenarios:

1) Your bill at a restaurant is $26.00. You want to leave a 15% tip. How much is the tip?

Tip: Add Discount: Subtract

Tax: Add

2) Your bill at a restaurant is $44.00. You want to leave an 18% tip. How much is the total bill?

$3.90

$51.92

3) Your bill at a restaurant is $32.80. You want

to leave a 20% tip. How much is the total bill?

Tip: Add Discount: Subtract

Tax: Add

4) Your bill at a restaurant is $54.75. You

want to leave an 18% tip. How much is the tip only?

$39.36

$9.86

END OF LESSON

The next slides are student copies of the notes for this lesson. These notes were handed out in class

and filled-in as the lesson progressed.

NOTE: The last slide(s) in any lesson slideshow (entitled “Practice Work”)

represent the homework assigned for that day.

Math-7 NOTES DATE: ______/_______/_______What: Consumer Applications

Why: To solve problems involving tax, tips, discounts, etc.

NAME:

A consumer is someone who ___________________________ goods / services at a variety of stores/ businesses.

Things for a consumer to consider are:

Taxes (_____________ to the purchase) Discounts (_______________ from the purchase) Tips (________________ to the purchase)

What’s a consumer?

When calculating the tax, discount, or tip, we always need to find the part out of the total for various different _______________. There are 2 ways to do this:

1) the percent proportion formula ( = ), OR

2) the multiplication method (change % to a decimal and multiply).

For example:You are at Target. Your total, before tax, is $28.50. If the sales tax is 6%, what is your total, including the tax?

There are two ways to solve above problem:

Percent Proportion:

=

Multiplication Method:

1) Change % to a decimal, &2) Multiply original price by

the decimal.

6% = 0.06 as a decimal

28.5x .06

Store Scenarios:

1) The sub-total (original price) of your purchase is $54.50. There is a 30% discount. What is the sale price?

2) The sub-total (original price) of your purchase is $98.25. There is a 45% discount. What s the discount only?

3) The sub-total (original price) of your purchase is $74.80. The sales tax is 5%. What is your total?

4) The sub-total (original price) of your purchase is $102.75. The sales tax is 6%. What is the tax only?

Tip: Add Discount: Subtract

Tax: Add

Restaurant scenarios:

1) Your bill at a restaurant is $26.00. You want to leave a 15% tip. How much is the tip?

2) Your bill at a restaurant is $44.00. You want to leave an 18% tip. How much is the total bill?

3) Your bill at a restaurant is $32.80. You want to leave a 20% tip. How much is the total bill?

4) Your bill at a restaurant is $54.75. You want to leave an 18% tip. How much is the tip only?

Math-7 Classwork“consumer applications”

DATE: ______/_______/_______NAME:_____________________________________________________________________________

Read the situations below, identify what type of consumer math (tax, tip,discount) and tell whether the final price would increase (you would add) or the price would decrease (you would subtract):

Situation Type of problem

Increase or Decrease?

1. Leigh just got her haircut and styled. She paid the price, and then paid her stylist an additional 20%.

   

2. Hector purchased a new video game at Target for 15% off the original price.

   

3. Marcus surprised his mom on her birthday with a special dinner. When he looked at the bill, there was an additional 5% charge listed after the price.

   

4. Ms. Yorty purchased new pencils for all her students. She paid an additional $2.05 on top of the price of the pencils.

   

5. Tariq paid the bill for his dinner at the Buffalo Wing Factory. Before he left, he placed $4.50 on the table for his server.

   

6. On Black Friday, Best Buy offered a brand-new laptop computer for $350. This is $200 off the original price.

   

Math-7 practice/ homework“consumer applications”

DATE: ______/_______/_______NAME:_____________________________________________________________________________

Do NOT need to solve. Just organize key information.

Price PercentAmount of

Tax/Tip/DiscountTotal Cost or

Sale Price

1.$29.95 jeans

7% tax

       

 

2.$39.50 sweater

25% discount

        

 

3.$35.99

necklace

5%

discount

        

 

4.$25.00 dinner

15% tip

        

 

5.

The original price of a jacket is $74.00. What is the total cost of the jacket if the sales tax is 6%?  

6. James and his family went out to dinner. Their bill was $48.50 and there was 5% sales tax. After the tax they paid a 20% tip. How much did they pay in all?