Algebra 2.9 Applications of Percents. Learning Targets Language Goal  Students will be able to use common applications of percents. Math Goal  Students.

Slides:



Advertisements
Similar presentations
Applications of Percents
Advertisements

Simple and Compound Interest
Simple Interest. is money added onto the original amount saved (earned) or borrowed (charged). Simple Interest.
Sullivan PreCalculus Section 4.7 Compound Interest
Simple Interest SWBAT find simple interest ; find the total amount earned or due; find the rate of interest; find the time that principal is left on deposit.
Simple Interest 7th Grade Math.
Simple and Compound Interest. Simple Interest Interest is like “rent” on a loan. You borrow money (principal). You pay back all that you borrow plus more.
Jules Henri Poincaré ( ) France
Simple Interest Formula I = PRT.
Pre-Algebra 8-7 More Applications of Percents Warm-up Pink handout #11-14 Turn in pink handout.
Grade 8 Algebra1 Applications of Percents
Algebra 2.8 Percents. Learning Targets Language Goal Students will be able to verbally express numbers written as percents. Math Goal Students will be.
P ERCENT ' S T RASHKETBALL Sponsored By: Ms. Sanders.
7-8 simple and compound interest
Simple and Compound Interest
3-3 Example 1 Find the simple interest earned on an investment of $500 at 7.5% for 6 months. 1. Write the simple interest formula. I = prt Lesson 3-3 Example.
Chapter 3 Mathematics of Finance Section 1 Simple Interest.
Applications of Percents
Slide 1 Copyright © 2015, 2011, 2008 Pearson Education, Inc. Percent and Problem Solving: Interest Section7.6.
Applications of Percent
Pre-Algebra HOMEWORK Page 427 #16-19 & Spiral Review (#20-24) ANSWERS.
Using Percents to Solve Problems
8-6 Simple Interest Indicator  N8 Develop and analyze algorithms for computing with percents and demonstrate fluency in use. Pages
Pre-Algebra 8.6 and 8.7 Applications of Percents.
Pre-Algebra HOMEWORK Page 423 #31-38 & Spiral Review (#39-45) Answers.
Application of Percents
2 1 3 Warm-Up 21-1 NS 1.3, 1.6, Warm-Up 21-2 NS 1.3, 1.6, 1.7.
2-8 Percents Lesson Presentation Lesson Quiz Holt Algebra 1.
California Standards NS1.4 Calculate given percentages of quantities and solve problems involving discounts at sales, interest earned, and tips. Also.
6-7 Simple Interest Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson Quizzes.
Simple Interest.
Lesson 5-8 Simple Interest.
Using Percents Part 2.
5 Minute Check Find the price to the nearest cent. Complete on the back of your homework. 1. $60; with a 60% discount 2. $40; with 7% tax 3. $199; with.
Course Applications of Percents Warm Up Estimate % of out of % of out of % % Possible answers:
Lesson 8-6 Pages Simple Interest Lesson Check 8-5.
Calculating Tax, Tips, and Commission
3.1 Simple Interest Definition: I = Prt Definition: I = Prt I = interest earned I = interest earned P = principal ( amount invested) P = principal ( amount.
Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall. Chapter 5 Percents.
Lesson 7.6 Concept: How to find simple interest Guidelines: When you compute simple interest for a time that is less than 1year, write the time as a fraction.
Percent and Problem Solving: Interest Section 7.6.
Review 2.8 Lesson Quiz: Part 1
Simple Interest Formula I = PRT. I = interest earned (amount of money the bank pays you) P = Principle amount invested or borrowed. R = Interest Rate.
Compound Interest. A = New balance after interest P = Principle amount invested or borrowed. R = Interest Rate usually given as a percent (must changed.
Simple Interest Formula I = PRT. I = PRT I = interest earned (amount of money the bank pays you) P = Principle amount invested or borrowed. R = Interest.
Markup, Discount, Taxes, and Interest
Percent.
Holt CA Course Simple Interest Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.
Simple and Compound Interest Simple Interest I = Prt Compound Interest A = P(1 + r)
Warm up… 1 ) Mr. Sanchez bought 2 magazines for $9.95 each and 1 book for $ If the sales tax is 6%, what is the total cost of Mr. Sanchez’s purchases?
 Real estate agents often work for commission. A commission is a fee paid to a person who makes a sale. It is usually a percent of the selling price.
Percent Applications Sales Tax Tips Interest. is determined by finding a certain percentage of a purchase price. It is added to your total bill when you.
MATHO!!! (Math Bingo) Real World Applications of Percents (Percent of Change, Sales Tax, Tips, Markup, Discount, Simple Interest)
Copyright © 2014, 2010, 2007 Pearson Education, Inc. Slide 1 Percent 7.
Applications of Percent
5-5 Simple Interest. Video Tutor Help Finding simple interestFinding simple interest (5-5) Simple Interest Khan Academy Simple interest.
Warm Up 1. Write 0.03 as a percent. 2. Write as a decimal.
Bell Work Jan 28 1) 2) Obj: I will use percents to determine sales tax, tips, and commissions.
Simple Interest. is money added onto the original amount saved (earned) or borrowed (charged). Simple Interest: Video below!
Compound Interest. A = New balance after interest P = Principle amount invested or borrowed. R = Interest Rate usually given as a percent (must changed.
Holt McDougal Algebra Percent Increase and Decrease Warm Up 1. Find 30% of Find 28% of 60. Solve for x = x(50) = x(86) 5.
Applications of Percents
Week 13 Simple Interest. Lesson Objectives After you have completed this lesson, you will be able to: Represent or solve simple interest problems. Solve.
Warm Up (-2)(5) (-7) 4.-50/(-5) 5.Find 30% of is what percent of 100?  34.
Mathematics of Finance
Stand Quietly.
Applications of Percents
1. ) Triangle ABC is similar to triangle XYZ. The length AB is 10
2.5 – Percents in Business Textbook pg. 137 Objective:
Algebra 1 Section 3.6.
Presentation transcript:

Algebra 2.9 Applications of Percents

Learning Targets Language Goal  Students will be able to use common applications of percents. Math Goal  Students will be able to estimate with percents. Essential Question  Where do you use percents in the world around you?

Warm-up

Homework Check

Review 2.8 with WS

Vocabulary Commission: money paid to a person or company for making a sale, usually a percent of the sale amount. Interest: The amount of money charged for borrowing or investing. Sales Tax: a percent of the cost of an item that is charged by governments to raise money. Principal: the amount of money borrowed or invested Tip: The amount of money added to a bill for a service.

Example 1: Business Application  A. Ms. Barns earns a base salary of $42,000 plus a 1.5% commission on sales. Her total sales one year were $700,000. Find her total pay that year.

Example 1: Business Application  B. A telemarketer earns $350 per week plus a 12% commission on sales. Find her total pay for a week in which her sales are $940.

Example 1: Business Application  C. Mr. Cortez earns a base salary of $26,000 plus a sales commission of 5%. His total sales for one year were $300,000. Find his total pay for the year.

Example 2: Finance Application  Simple Interest Paid Annually  Formula: I = Prt  I=Simple Interest  P=Pricipal,  r=Interest rate per year as a decimal  t=time in years

Example 2: Finance Application  Find the simple interest paid annually for 2 years on a $900 loan at 16% per year.

Example 2: Finance Application  After 3 months the simple interest earned annually on an investment of $7000 was $63. Find the interest rate.

Example 2: Finance Application  Find the simple interest earned after 2 years on an investment of $3000 at 4.5% interest earned annually.

Example 2: Finance Application  The simple interest paid on a loan after 6 months was $306. The annual interest rate was 8%. Find the principal.

Example 2: Finance Application  Find the simple interest paid for 3 years on a $2500 loan at 11.5% per year.

Example 2: Finance Application  After 6 months, the simple interest earned on an investment of $5000 was $45. Find the interest rate.

Example 3:  The dinner check for Maria’s family is $ Estimate a 15% tip.

Example 3:  The sales tax rate is 6.25%. Estimate the sales tax on a shirt that costs $29.50.

Example 3:  Estimate a 15% tip on a check for $29.98

Example 3:  Estimate the tax on shows that cost $68.50 when the sales tax rate is 8.25%

Example 3:  Lunch at a restaurant is $ Estimate a 15% tip.

Example 3:  The sales tax rate is 7.25%. Estimate the sales tax on a book that costs $19.97.

Finish Stations

Lesson Quiz