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Math 11. 26. 2012

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Do Now 1. 24 is what percent of 32? 2. What is 0.5% of 88? 3. In a school band of 24 students, 9 students play brass instruments. What percent of the members play brass instruments?

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1. 75% 2. 0.44 3. 37.5%

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Notes

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Numbered Heads 1.The cost of an oil change is $21.95. It had a mark up of 65% 2.The cost of a concert ticket is $100. Mark up 15% What is the final price? 3.Cost of an MP3 player: $129.50 Markup: 60% 4. Cost of a computer: $1,850.00 Markup: 75%

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1. $36.22 2. $115 3. $ 207.20 4. $3,237.50

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Break

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BRAIN POP http://www.brainpop.com/math/ratioproportionandpercent/inte rest/ http://www.brainpop.com/math/ratioproportionandpercent/inte rest/

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Notes

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WHITE BOARD CHECK 1. Find the principal at the given rate $720, 4%

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WHITE BOARD CHECK 1. Find the principal at the given rate $720, 4% p=18.90

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2.Find the balance for the given principal and annual interest rate. $ 250, 3%

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2.Find the balance for the given principal and annual interest rate. $ 250, 3% Balance: $257.50

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3. Find the simple interst on $200.00 at an annual interest rate of 3.1%

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$ 6.20

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4. Find the principal at the given rate $345, 7%

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4. Find the principal at the given rate $345, 7% P=$24.15

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Use Simple interest to find the ending balance A/C 1. $210 at 8% for 7 years 2.$20,600 at 8% for 2 years 3. 2,300 at 7% for 9 years B/D 4. $4,000 at 3% for 4 years 5. $ 14,000 at 6% for 9 years 6. 43, 800 at 4.8% for 2 years

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ANSWERS 1. 327.60 2. 23,896.00 3.3,749.00 4.4,480.00 5. 21,560.00 6. 48,004.80

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H.W Study Guide

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Exit Slip 1. Johnny wants to purchase a toy car for 9.95 but there is a mark up of 30%. How much will the final price be? 2. Cost of an eraser is $0.95 there is a markup of 60%. What will be the final price?

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Do Now Turn the decimal into a percent… turn percent into a decimal. 1.5% 2.0.72 3.60% 4.0.0045 5.3.4 6. 63%

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0.05 72% 0.6 0.45% 340% 0.63

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Jeapordy

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H.W Study guide

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Do Now 1. What is 400% of 1.3? 2. 80% of 15 is what number? 3. Find 15% tip of $12.89 4. What is 62% of 128?

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1. 5.2 2. 12 3. $1.93 4. 79.83

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Brain Dump

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Test 60 min

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