1 Percentages Contents 1.1 Percentages 1.2 Percentage Change

Slides:

Advertisements

Similar presentations

Just in case is not clear the equation is:

Advertisements

Simple Interest Formula I = PRT.

9-1: Relating Fractions, Decimals, and Percents

Homework Helper, Page ) Mr. Nelson’s class recently took a test. He made a list of the scores. 66, 79, 76, 95, 55, 82, 60, 85, 93, 76, 63, 96, 75,

Percent By: Regine Apple M. Lopez. Definition Conversion Percentage, Rate and Base Percentage Problem Percent.

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.

Mr. Stasa – Willoughby-Eastlake City Schools ©  If you put $100 under your mattress for one year, how much will you have?  $100  Will the $100 you.

EXAMPLE 2 Finding a Base Marc received 273, or 35%, of the votes in the student council election. How many students voted in the election? Student Council.

Percents A Percent is a ratio that compares a number to 100. The symbol for percent is %. You can write percents as fractions and decimals. 36% as a decimal.

Do Now 4/23/10 Take out HW from last night. Take out HW from last night. Practice worksheet 7.6 odds Practice worksheet 7.6 odds Copy HW in your planner.

Warm ups: Eric bought a pair of shoes originally priced at $95 for 45% off. He paid $52.25 not including tax. Which equation shows how Eric.

Commercial arithmetic

Contents 1.1 Percentages 1.2 Percentage Change 1.3 Profit and Loss 1.4 Discount 1.5 Interest 1 Percentages Mr. Bloom, Monroe H.S.

Contents Percentages Percentage Change Percentages.

THESE SHOULD NOT BE DIFFICULT FOR YOU: 1. Find 30% of Find 28% of 60. Solve for x = x(50) = x(86) is what percent of 80? 6.

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.

Warm up Notes Preliminary Activity Activit y For Fun Add xtranormal link here Basic Arithmetic.

B1: I can calculate simple interest on a bank account.

PERCENT Prepared by: Regine Apple M. Lopez. PERCENT Definition Conversion Percentage, Rate and Base Percentage Problem.

Simple Interest Formula I = PRT. I = interest earned (amount of money the bank pays you) P = Principle amount invested or borrowed. R = Interest Rate.

Review  Find the solutions to the following problems… 1) 50 x.6 2) 20.4 x.2 3) 45.3 x 3.1 4) 53.2 x.25.

Topic 2 Proportional Reasoning with Percents Percent of a Number To find the percent of a number, you can: write the percent as a fraction and.

Estimating Percent Mentally 10% 10% Lola borrowed $125 from a pawn shop. She’ll have to pay back the loan, plus the pawn shop charges an additional 9.9%

Simple Percent Problems To solve a simple percent problem, you change the percent to a decimal and multiply. Solve the following percent problems. Remember.

Simple Interest Formula I = PRT.

Copyright © 2012, 2009, 2005, 2002 Pearson Education, Inc. Chapter 5 Percent.

6-3 (E)Simple Interest Formula I = PRT. I = interest earned (amount of money the bank pays you) P = Principle amount invested or borrowed. R = Interest.

Percentages Your task is to produce a mindmap for the following aspects of percentages;  Express one quantity as a percentage of another  Find a percentage.

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.

Chapter 8 Percentages. Learning Objectives Write a percentage as a fraction in its simplest form Change a percentage to a decimal Change a decimal to.

Challenging… Interest Rates and Savings By: Nicole Sandal.

Resources Financial Maths $20000 % Problems to Solve Simple Percentage Percent with fractions and decimalsPercent with fractions and decimals % Increase.

Percentages By Teacher Gel. MEANING OF PERCENTAGE Percentage is a fraction with 100 as its denominator. Percent means per 100. % is the symbol used to.

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.

Warm Up (-2)(5) (-7) 4.-50/(-5) 5.Find 30% of is what percent of 100?  34.

Simple Interest Goal: Students will learn how to complete

Converting Percents to fractions

Percent Test Review Wednesday, May 22, 2013

2.7 – Percent of Increase and Decrease

Percent Applications Sales Tax Tips Interest.

PROFIT & LOSS © Department of Analytical Skills.

FRACTIONS DECIMALS PERCENTS. FRACTIONS DECIMALS PERCENTS.

Percent Math 6.

Bell Work From 5 to = 5 40% increase

8.4 Percent of Increase and Decrease

3.3 Markup and Markdown.

9-2 6th grade math Estimating Percent.

Percentages – Amounts, Increase and Decrease

Percents Review 1. Simple Problems Involving Percentages

Simple Percent Problems

Learning Journey – Percentages

Percent Math 6.

Round the discount to the nearest penny.

7 Chapter Rational Numbers as Decimals and Percent

I = PRT I = P x R x T nterest rincipal ate ime Simple Interest

Day 86 – Introduce the power of interest

Percentage increase and decrease

7-4 Percents and Interest

Simple Percent Problems

Simple Interest Formula I = PRT.

Goal: The learner will multiply to find a percent of a number.

Successive Percentage Changes

Sales Tax, Tips, Discounts

Presentation transcript:

1 Percentages Contents 1.1 Percentages 1.2 Percentage Change 1.3 Profit and Loss 1.4 Discount 1.5 Interest Mr. Bloom, Monroe H.S.

1.1 Percentages Example 1 Solution : A percentage is a fraction converted to a decimal, and then multiplied by 100 and add percent sign (%). For example, Example 1 Change each of the following into percentage. (b) (a) 0.83 Solution :

1.2 Percentage Change When an original value is changed to a new value, the percentage change of the value can be measured in the following way.

1.2 Percentage Change Example 2 Solution : Peter’s weight decreases from 60 kg to 48 kg. Find the percentage change of his weight. Solution : If the answer is positive, it means a percentage increase. If the answer is negative, it means a percentage decrease.  Percentage decrease of weight is 20%.

1.3 Profit and Loss The profit and loss in trading refers to the difference between the cost price and the selling price. The selling price can be found if the cost price and the percentage change are given.

1.3 Profit and Loss  Loss percentage of car’s price is 40%. Example 4 David bought a car for $90 000 three years ago. He sells the car for $54 000 this year. What is the percentage change of his car’s price? Solution : When the percentage change is positive, it means there is a profit. When the percentage change is negative, it means there is a loss.  Loss percentage of car’s price is 40%.

1.4 Discount Discount is a price deduction from a marked price in purchasing. Example 5 The marked price of a washing machine is $4500. If the selling price is $3000, find the discount percentage. Solution :

1.5 Interest Let P be the principal, I be the interest, A be the amount, r% be the interest rate per period and t be the number of periods. (a) Simple Interest

1.5 Interest Let P be the principal, I be the interest, A be the amount, r% be the interest rate per period and t be the number of periods. (a) Simple Interest Roberto deposited $3000 in a savings account for 2 years @ 3% in order to buy a car. How much interest did he earn? I = Prt => I = P r t =$3000 x .03 (decimal form of 3%) x 2 $90 x 2 = $180 in interest earned