slide1
Download
Skip this Video
Download Presentation
Warm Up

Loading in 2 Seconds...

play fullscreen
1 / 31

Warm Up - PowerPoint PPT Presentation


  • 60 Views
  • Uploaded on

Preview. Warm Up. California Standards. Lesson Presentation. Warm Up Solve. 1. 10% of what number is 6? 2. What percent of 20 is 8? 3. What is 80% of 60? 4. 50 is what percent of 200?. 60. 40%. 48. 25%. California Standards.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Warm Up' - quinn-valenzuela


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Preview

Warm Up

California Standards

Lesson Presentation

slide2

Warm Up

Solve.

1.10% of what number is 6?

2. What percent of 20 is 8?

3. What is 80% of 60?

4. 50 is what percent of 200?

60

40%

48

25%

slide3

California

Standards

Number Sense (NS1.4) - Calculate given percentages of quantities and solve problems involving discounts at sales, interest earned, and tips.

slide5

Vocabulary

Regular price –the amount something costs before a discount (Sale Price + Discount = Regular Price)

Discount –the amount that is taken off, saved, or that you do not have to pay (Regular Price – Sale Price = Discount)

Sale price –the amount something costs after a discount is taken off (Regular Price - Discount = Sale Price )

slide6

Example 1: Finding the sale price using proportions.

The regular price of a bicycle helmet is $42.99. It is on sale for 20% off. What is the sale price?

Step 1: Find the amount of the sale price.

Think: 80% of $42.99 is what number?

80

100

n

42.99

=

Write a proportion.

80 • 42.99= 100 • n

Set the cross products equal.

3439.2= 100n

3439.2

100

= 100n

100

Divide each side by 100.

34.392= n

Round to the nearest cent.

The amount of the sales price is $34.39.

slide7

Example 1: Finding the sale price using decimals.

The regular price of a bicycle helmet is $42.99. It is on sale for 20% off. What is the sale price?

slide8

Example 2: Finding the discount using proportions

The regular price of a bicycle helmet is $42.99. It is on sale for 20% off. What is the discount?

Step 1: Find the amount of the discount.

Think: 20% of $42.99 is what number?

20

100

n

42.99

=

Write a proportion.

20 • 42.99= 100 • n

Set the cross products equal.

859.8= 100n

859.8

100

= 100n

100

Divide each side by 100.

8.598= n

Round to the nearest cent.

The amount of the discount is $8.60.

slide9

Example 2: Finding the discount using decimals

The regular price of a bicycle helmet is $42.99. It is on sale for 20% off. What is the discount?

slide10

Check It Out! Example 3

The regular price of a computer game is $49.88. It is on sale for 15% off. What is the sale price?

slide11

Check It Out! Example 3

The regular price of a computer game is $49.88. It is on sale for 15% off. What is the discount?

slide12

Home Learning

On-Line Tutoring

slide20

California

Standards

Number Sense (NS1.4) - Calculate given percentages of quantities and solve problems involving discounts at sales, interest earned, and tips.

slide22

Sales Tax

Sales Tax –the amount that is ADDED to what you pay (Price + Sales Tax = Total/Final Cost)

slide31

Lesson Quiz

Find each percent of change.

1. 10 is increased to 12.

2. 25 is increased to 45.

3. 10 is decreased to 1.

4. The regular price of a coat is $120. It is on sale for 25% off. What is the discount and sale price?

5. A backpack that sells for $42 is on sale for 25% off. Find the sale price.

20%

80%

Discount $30 Sale Price $90

90%

$31.50

ad