Drill #35 1. 2. 3. A dripping faucet wastes 3 cups of water every 24 hours. How much water is wasted in a week?

Slides:

Advertisements

Similar presentations

EXAMPLE 1 Finding a Sale Price You are shopping for a guitar and find one with an original price of $160. The store is offering a 30% discount on all guitars.

Advertisements

Two Step Equation Percentages Adding and Subtracting Adding -- Tax, Markup –Original amount + a percent of that amount –An item is marked up 75%

Ch. 5-7 Percent of change. Ch. 5-7 Vocabulary Percent of change: a ratio that compares the change in quantity to the original amount. Percent of increase:

Warm Up 1. 14,000 is 2 % of what number? is 13% of what number? % of what number is 12? % of what number is 189? 560,

8.4 Percent of Increase and Decrease. Percent change is the ratio of the amount of change to the original amount. Percent increase describes how much.

NS1.6 Calculate the percentage of increase and decrease of a quantity. NS1.7 Solve problems that involve discounts, markups, commissions, and profit and.

EXAMPLE 1 Finding a Sale Price You are shopping for a guitar and find one with an original price of $160. The store is offering a 30% discount on all guitars.

Percent of Change We can find percents of increase and decrease and solve problems involving percents of change.

Percent Increase and Decrease

Lesson 3.7- Percent of Change, pg. 160

Using Percents to Solve Problems

7-7 Sales Tax and Discount. Discounts are like what that we have been talking about? What is a discount?

Algebra 1 Section Objectives I can find percent of increase or decrease in story problems.

Why??  Percents are all around us! Sales and discounts shopping Sales Tax Income Taxes Tips on restaurant bills Etc…  When doing problems with % remember.

Lesson 7 MI/Vocab percent of change percent of increase percent of decrease Find percents of increase and decrease. Solve problems involving percents of.

Lesson 11 DAY 2. CLASS STARTER 30 % OF A NUMBER IS 57 WHAT PERCENT OF 60IS24 OF24%50.

Percent Increase and Percent Decrease. Percent of Change A PERCENT OF CHANGE is the percent a quantity increases or decreases from its ORIGINAL amount.

Sales Tax, Discounts, and Commissions Section 6.7.

Percent Increase and Decrease

7-7 Sales Tax and Discount. Discounts are like what that we have been talking about? What is a discount?

Bell Work After an increase in his weekly wage of 20% Joe has $450.What was his wage before the increase? $450 is 120% of  Complete a number line with.

3-7 Percent of Change Objective: Students find percents of increase and decrease and solve problems involving percents of change. S. Calahan 2008.

Bell Work Movie tickets used to cost $5, now cost $7. Find the percent of change. A percent of change tells how much a quantity has increased or decreased.

Algebra 1 Notes 3.7 Percent of Change.

DO NOW Define: Markup: An increase from the wholesale price of an item to the retail price. Discount: A decrease from the original price of an item to.

Lesson 4-3 Proportions and Percent Equations Objective: To use proportions when solving percent problems and to write and solve percent problems.

 Percent of Change – the ratio of the change in an amount to the original amount expressed as a percent.  Percent of Increase – the new number is greater.

Bell Ringer 11-7 ( Do in notebook) 5 minutes 1. Express 20% as a fraction in lowest terms and as a decimal Express 134% as a decimal. Express 6.5%

Bell Ringer 03 Discussion on Midterm and Quiz Discussion on Midterm and Quiz You are required to go to at least 2 days of tutoring for test corrections.

Chapters 8.5 & 8.6 Problem Solving with percents Exploring percent of increase or decrease.

Splash Screen. Then/Now You have already solved real-world problems using the percent equations. (Lesson 7–5) Find percent of increase and decrease. Solve.

Percent of change. Find the percent of change from a 28 to a 21 Step 1: Subtract = 7 Step 2: Make a fraction Difference Original amount 7 28 Step.

APPLICATIONS OF PERCENT Chapter 6. Fractions, Decimals, & Percents A percent is a ratio that compares a number to 100 To change a decimal to a percent,

Bellwork 1. Find 30% of Find 28% of 60. Solve for x = x(50) = x(86) is what percent of 80? is what percent of 30? 16.8.

Using Proportions to Solve Percent Problems MCC7.RP.3: Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest,

Mr. Sands 6.3.  1.Price x sales tax rate = sales tax --Instead of subtracting like discount you add to the price. 2.Price + sales tax = total cost 3.Discount.

Lesson 3-7 Percent of Change. Definitions Percent of change- When an increase or decrease is expressed as a percent, the percent is a percent of change.

Ch 3.9 Objective: To solve problems involving percent.

Objective- To solve problems involving percent. Five types of problems - Simply translate what you read! 1) Ratio Conversions 6 out of 20 is what percent?

Percent of Change. What is Percent of Change? Percent of change = amount of change original amount It also = last – first first.

2.3 - Direct Variation.

3.7B HW Answers , decrease 45 decrease 33% 300 B.

Percent Proportions & Equations. A percent is a ratio that compares a number to 100. A commission is a percent of the amount of your sales. A percent.

Example 1 Use Ratios Brandy paid $6.75 for 3 pounds of mixed nuts. At this price how much would 5 pounds cost? Let x represent the price for 5 pounds of.

PERCENT OF CHANGE. WHAT IS THE PERCENT OF CHANGE? The amount stated as a percent that a number increases or decreases.

Bell Work From 5 to = 5 40% increase

8.4 Percent of Increase and Decrease

Daily Warm-Up (I do) ALCOS # 3 5th grade

EXAMPLE 1 Finding a Sale Price

Using Percents 7-10 Warm Up Problem of the Day Lesson Presentation

Percent Increase and Decrease

Markup and Discount Calculate given percentages of quantities and solve problems involving discounts at sales, interest earned, and tips. Objective:-Students.

5.6 Finding Percent of Change

2-7 Percent of Change Percent of Change: what % something changes

Algebraic Definition of Subtraction a - b = a + -b

Problem of the Day Last week, you finished Level 2

Math 5-7: Percent of Change

2-7 Notes for Algebra 1 Percent of Change.

Objective- To solve problems involving percent.

EQ: How do I solve discount and tax problems?

Unit 6. Day 12..

Bellwork A pass at a water park is $58 at the beginning of the season. The cost of the pass decreases each month. 1. Each month 10% is taken off the.

Percent Increase and Decrease

The word percent means:

2.3 - Direct Variation.

Finding Discount Objective: Students will calculate percentages and find the amount of discount.

Consumer Applications Review

Problem Solving with Proportional Relationships

Bell work Week 28 Cost - The price retailers pay to a manufacturer

Percent Change: Percent Increase / Percent Decrease

Presentation transcript:

Drill #35 1. 2. 3. A dripping faucet wastes 3 cups of water every 24 hours. How much water is wasted in a week?

Drill #35 2-7 Practice, #1 – 4

Drill #36 Find the missing value: 1. New: $45 2. New: $300 Original: $60 Original: $200 % Change: ? % Change: ? 3. New: ? 4. New: 100 people Original: $50 Original: ? % Increase: 40% % Decrease: 20%

2-7 Percent of Change Objective: To find the percents of increase and decrease and to solve problems involving percent of change. Open books to page 111.

Percent of Change* The ratio of the increase or decrease of something to the original amount Amount of change = r Percent of change Original Amount 100 Percent of change = Amount of change x 100 Original Amount

Percent of Increase* The ratio of the increase of something to the original amount Amount of increase = New Amount – Original Amount Amount of increase = r Percent of increase Original Amount 100 Percent of increase = Amount of increase x 100 Original Amount

Percent of Decrease* The ratio of the decrease of something to the original amount Amount of Decrease = Original amount – New Amount Amount of decrease = r Percent of decrease Original Amount 100 Percent of decrease = Amount of decrease x 100 Original Amount

Find Percent of Change* State whether each percent of change is an increase or decrease, then find each percent of change. Ex1. a. Original: $25 b. Original: 30 New: $28 New: 12 1A: Original: 66 1B. Original: 9.8 New: 30 New: 12.1

Jamal Lewis In 2003 Jamal Lewis rushed for 2066 yards and scored 14 touchdowns. In 2004 he rushed for 1003 yards and scored 7 touchdowns. What was his percent of decrease for yards and touchdowns?

Sales Tax* Method 1: Tax + Price 1. Find tax amount (multiply tax percent * sales price) 2. Add tax amount to the sale price Method 2: Find total price 1. Add 100% to tax amount and multiply sales price

Sales Tax* Example 3: Concert ticket $45 + 6.25% tax 3A: DVD: $24.99 + 7.25% tax Classwork: 2-7 Practice #10, 11, 12

Discounts* Method 1: Find the discount amount % discount (Original price) = discount amount Find the discount price Original price – discount amount = Discount Price Method 2: Find the Discount Price 1. Subtract discount from 100% and Multiply by Original Price (100% - discount %) (Original price) = Discount Price

Discount* Example 4: Sweater $38 + 35% Discount 3A: Picture $14.89 + 40% Discount Classwork: 2-7 Practice #16, 17, 18

Discount + Sales Tax* Method 1: 1. Find the discount price 2. Find the price with tax using the discount price Method 2: 1. Find the tax and discount in one step Example: 2-7 Practice #22

Classwork* Discount, Tax, and Discount with Tax Pg 114: #29 – 34 Do with Drill # 35