Wednesday, December 7th

• Please take out your HW (worksheet) and complete warm up• Did you write down your

homework?WARM UP1. 40% of 3 is what number?

2. What percent is 6 out of 7?

Corny Joke of the Day

Where do bees go to the

bathroom?

The “BP” station

Fill in the missing pieces!

100

percent

Percent Practice 1

About 1/125 of the people in the United States have the last name

Johnson. What percent of the people have this last name?

(HINT: use part/whole = %/100)

Percent Practice 2

Ethan has mowed 40% of his lawn. If he has been mowing for 20 minutes, how long will it take him to mow the rest of his lawn?

Homework Answers

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

Discounts

American Eagle is having a 10% off sale. If Liz wants to buy a sweater whose regular price is $19.95, about how much will she pay for the

sweater after the discount?

Step 1: Find 10% of 19.95

Step 2: SUBTRACT amount from 19.95

10

19.95 100 1

19.95 10 19.95 10 1.995

Answer: $17.955 so $17.96

You may use Calculators!

Tips

Michael’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

Step 2: Add to total bill to find the amount he paid!

Sales Tax

Shelby is buying a dog bed for $29.75. The sales tax rate is 7%.

About how much will the total cost of the dog bed be?

Step 1: Find 7% of 29.75

Step 2: Add to total bill to find the amount he paid!

Finding the Best Deal

You want to get he new I-Pad but you want to find the best deal! Below are three stores and their prices for the I-

Pad. In your groups, you must determine what store has the best

deal?Best Buy: $498 for 15% off Target: $500 for 18% off Amazon: $490 for 10% off

Five Alive

1. Marta enlarges a photo that is 7 inches high and 4 inches wide. If the height of the enlargement is 10 inches, find the width?

2. How much is a 11% tip on a $20.97 bill?

3. NGMS won 72% of the games they played last season. If they played 15 games, how many games did they win?

4. The price on a book is $12.99. If sales tax is 4%, about how much will its total cost be?

5. The bill for a family dinner comes to $56.78. About how much would a 20% tip be?

Homework

Study GuideWeekly Review

due FRIDAYTomorrow and Friday:

PROJECT