First, let’s review Percents…
https://www.khanacademy.org/math/cc-seventh-grademath/cc-7th-fractions-decimals/cc-7th-percent-wordproblems/v/solving-percent-problems
NOTEBOOK SETUP:
Steps:
1)
2)
3)
4)
5)
Make a title Page on the next blank page in your notebook. Call it “Percent's”
Topic for next page: Consumer Math
EQ: How do you use percent to solve consumer math problems?
Date: 3/11/15
Don’t forget the page number.
6) Do the t-chart activity on the next slide.
7) Copy each definition and the example that follows. YES YOU HAVE TO COPY THE WORD
PROBLEMS!!!
EQ: HOW DO YOU USE PERCENT TO SOLVE CONSUMER
MATH PROBLEMS?
Sort the following words into a t-chart. One side of your chart should represent words that
increase your total (+) and the other should be words that decrease your total (-):
+ -
tax, mark down, discount, tip, gratuity,
mark up, commission, interest.
TIP/GRATUITY
An amount of money given to a person
(waiter, taxi driver, etc) who has
provided a service.
http://www.mathplayground.com/howto_percentwp.html
TIP/GRATUITY
Example: Your bill at a restaurant is $54.00. If you want to
leave a 20% tip, how much would the total amount be?
$54.00 x (.20) = $10.80
$54.00 + $10.80 = $64.80
SALES TAX
A fee charged by the government on a product,
income or activity.
http://www.phschool.com/atschool/academy123/english/academy123_content/wl-bookdemo/ph-838s.html
SALES TAX
The price of a t-shirt at Target is $15.50. If North Carolina has
a 7% sales tax rate, how much would the total be for the
shirt?
$15.50 x (.07) = $1.09
$15.50 + $1.09 = $16.59
WHOLESALE PRICE
The original cost of an item that a
store buys from a wholesaler.
MARK UP
An amount added to the wholesale price to determine the
selling price.
The wholesale price of a pair of shoes is $75. The store
increases the price of the shoes with a markup of 15%.
What is the selling price of the shoes.
$75.00 x (.15) = $11.25
$75.00 + $11.15 = $86.25
DISCOUNT/SALE
Stores often sell goods for a discounted price.
Typically, a store will discount an item by a percent
of the original price.
http://www.mathplayground.com/howto_findsaleprice.html
DISCOUNT/SALE
In a video store, a DVD that sells for $15 is marked,
"10% off". What is the discount? What is the sale
price of the DVD?
The rate is 10%.
The discount is: 0.10 x $15.00 = $1.50
$15.00 - $1.50 = $13.50
Discount amount= $1.50
Sale Price = $13.50
MARK DOWN
Any reduction of price. Discount and sale
normally mean the same thing as mark
down.
TIME TO PRACTICE..
https://www.khanacademy.org/math/cc-seventh-grademath/cc-7th-fractions-decimals/cc-7th-percent-wordproblems/e/discount_tax_and_tip_word_problems
LET’S TRY THIS AT THE MALL...
http://www.mathplayground.com/mathatthemall1.html