# Math 11. 26. 2012. 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.

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Math 11. 26. 2012

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?

 1. 75%  2. 0.44  3. 37.5%

Notes

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%

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

Break

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

Notes

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

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

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

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

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

 \$ 6.20

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

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

 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

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

H.W  Study Guide

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?

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%

 0.05  72%  0.6  0.45%  340%  0.63

Jeapordy

H.W  Study guide

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?

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

Brain Dump

Test 60 min

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