Tuesday, January 10th
• Please complete warm up Please have homework out (Finding percent worksheet)
WARM UP1. 30% of 12 is what number?
2. 6 is %4 of what number?
Corny Joke of the Day
Why did the teacher have to wear sunglasses to
school?
Her students were too BRIGHT
What? Checkpoint #1 Similar figures
Indirect measurement
When? TODAYYYYYYYY
Week Schedule □Monday: Review and Checkpoint
HW Weekly Review □Tuesday: Sales Tax, Discount, and Tip
Notes HW Worksheet
□Wednesday: CW Project HW Study Guide
□Thursday: Review Activities HW Study
□Friday: TEST #1
FlashcardsFraction to decimal
Decimal to fraction
Decimal to percent
Fraction to percent
Fraction to Decimal
6
5 Rule:
Decimal to Fraction
32.Rule:
Decimal to Percent
23.Rule:
Fraction to Percent
4
3 Rule:
Weekly Review
Due Friday! Remember to show your work on a
separate sheet of paper
Fill in the missing pieces!
?
? 100
percent
What did Tigger do wrong?
8 is 40% of what number?
40
8 100
x
320 100
3.2
x
x
Practice problems
□4% of 60 is what number?□Write 101% as a decimal □Write .256 as a percent □4 is 30% of what number?
Checkpoint
□Please put your name on it
□ Make sure to READ each question carefully
□ Be sure to show your work
□Put in front bin when finished
□Complete Weekly Review
Do you ever wonder what deal is better?
Example: 40% off a $24.50 sweater
Or The same sweater 20% off but it’s
$32.25
Knowing how to Use percents can
help you!
Using Percents in the Real World
Percentages are commonly used in everyday life. When you pay for something, whether it is a product or a service, percents are almost always involved. Most often percents are used to calculate discounts, tips, and sales tax.
Common Uses of Percents
Discounts A discount is an amount that is subtracted from the regular price of an item. discount = price • discount rate total cost = price – discount
Tips A tip is an amount added to a bill for service. tip = bill • tip rate total cost = bill + tip
Sales tax Sales tax is an amount added to the price of an item.
sales tax = price • sales tax rate total cost = price + sales tax
DiscountsPay Less!
American Eagle is having a 10% off sale. If Chandler wants to buy a sweater whose regular
price is $30.50, about how much will she pay for the sweater after the discount?
Step 1: Find 10% of 30.50
30.50(.10) = 3.50Discount = $3.05
Step 2: subtract discount from original price.
30.50 – 3.05 = 27.45
Sales Tax
Pay More!
Elly is buying a dog bed for $40.00. The sales tax rate is 7%.
About how much will the total cost of the dog bed be?
Step 1: Find 7% of 40.00
40(.07)=2.80
Step 2: Add to total bill to find the amount he paid!
40 + 2.80 = $42.80
TipsPay
More!
Joseph’s dinner bill from Longhorns is $17.85. He wants to leave a tip that is 15% of the bill. About how much should his tip be? How much will he
have to pay total?Step 1: Find 15% of 17.85
17.85(.15) = 2.68
Step 2: Add to total bill to find the amount he paid
2.68 + 17.85 = $20.83
Let’s Try
Together!
Problem #1
About how much do you save if a book whose regular price is $25.00 and is on
sale for 10% off?
Problem #2
Julie gets a 15% discount on all of the items in the clothing store where she
works. If she buys a shirt that regularly costs $44.99, how much money will
she save with her employee discount?
Problem #3
A bead store has a sign that reads “20% off the regular price.” If Janice
wants to buy beads that regularly cost $6.00,how much will she pay for them
after the store’s discount?
Problem #4
At Paint City, a gallon of paint with a regular price of $17.99 is now 15% off. At Giant Hardware, the same paint usually costs $21.99, but is now 20% off. Which store is offering the better deal?
