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Percentage presentation

Transcript: m 1 2 p b Y g X A Solving Percent Problems B Objective Today we will learn how to solve percent problems . Standard: 7.RP.3. Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error. C Change the following percent to a decimal: 80% .7% 9% 105% 2(4/5)% 45% 2.8% 5% 125% 9(3/5)% Change the decimal to a percent. 0.8 3 4.62 1.275 0.05 0.05 7 8.95 2.142 D Words and Meaning: E "Is" means equals (=) "Of" means multiply ( ) "What" means variable (x) "Find" means (x =) E Importance Real Life: To figure out how much money you will have to pay for taxes. To figure out if you will have enough money to pay. To figure out how amount of tip you will have to pay the server. To figure out the discount you will receive Academic: To get a good grade in class. To get a good score on your quiz. Step to Solve Percent Problems 1- Change Percent into a decimal 2- Change "is " to "=" 3- Change "of " to "." 4- Change unknown "what " to "x" 5- Solve the equation Example 1: Write a mathematical sentence and solve. Find 12% of 70. Ex 2: Write a mathematical sentence and solve. What is 40% of 28? We Do: Write a mathematical sentence and solve. What is 10% of 88? You Do: Write a mathematical sentence and solve. What is 32% of 300? You Do: Find the greater value. A. 20% of 16 B. 10% of 90 C.25% of 40 D. 100% of 7 F What is your presentation about? Introduction

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