tuesday, january 10 th
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Tuesday, January 10 th. Please complete warm up Please have homework out (Finding percent worksheet) . Warm Up. 30% of 12 is what number? 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. - PowerPoint PPT PresentationTRANSCRIPT
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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?
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Corny Joke of the Day
Why did the teacher have to wear sunglasses to
school?
Her students were too BRIGHT
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What? Checkpoint #1 Similar figures
Indirect measurement
When? TODAYYYYYYYY
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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
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FlashcardsFraction to decimalDecimal to fractionDecimal to percentFraction to percent
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Fraction to Decimal
65 Rule:
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Decimal to Fraction
32.Rule:
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Decimal to Percent
23.Rule:
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Fraction to Percent
43 Rule:
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Weekly Review Due Friday!
Remember to show your work on a separate sheet of paper
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Fill in the missing pieces!
?? 100
percent
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What did Tigger do wrong?8 is 40% of what
number?40
8 100x
320 1003.2
xx
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Practice problems □4% of 60 is what number?□Write 101% as a decimal □Write .256 as a percent □4 is 30% of what number?
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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
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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
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Knowing how to Use percents can
help you!
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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.
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Common Uses of PercentsDiscounts 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
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DiscountsPay Less!
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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
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Sales Tax
Pay More!
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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
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TipsPay
More!
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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
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Let’s Try
Together!
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Problem #1About how much do you save if a book whose regular price is $25.00 and is on
sale for 10% off?
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Problem #2Julie 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?
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Problem #3A 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?
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Problem #4At 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?