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Bell Work

Bell Work. Find the percent of change and tell if it is increase or decrease:. The original price for shoes were $55.00. They are now on sale for $40.00. Round to the nearest whole percent. 27% decrease. The temperature at 5am was 32 degrees. At noon is was 44 degrees. 37.5% increase.

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Bell Work

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  1. Bell Work Find the percent of change and tell if it is increase or decrease: The original price for shoes were $55.00. They are now on sale for $40.00. Round to the nearest whole percent. 27% decrease The temperature at 5am was 32 degrees. At noon is was 44 degrees. 37.5% increase How much tax would you pay for a coat that costs $48.50? Sales tax is 6%. What is the total cost of the coat with sales tax? $2.91 tax $51.41 total

  2. Graphs

  3. In a recent survey, 300 students were asked if they preferred pizza, tacos, or hamburgers. Favorite Foods Of 300 Students How many students preferred hamburgers? 25% Change the percent to a decimal and multiply by the total number of students. pizza tacos 65% 10% 195 students chose hamburgers 65% = .65 x 300 hamburgers How many students preferred tacos? • How many students preferred pizza? 10% = .10 x 300 25% = .25 x 300 30 students prefer tacos 75 students voted for pizza

  4. In another recent survey, 60 students were asked which pet they preferred. Reptiles 10% Fish 15% Notice that the total number of pets equal 60 Change the percent to a decimal and multiply by 60. Cats 30% Dogs 45% Also notice that the combined percents equal 100% 45% is how many dogs? Favorite Pets 27 dogs 30% is how many cats? 10% is how many reptiles? 15% is how many fish? 18 cats 9 fish 6 reptiles

  5. To find the percent of people who prefer milk as their favorite drink, divide 18 by the total number of people. Add the people to find the total. (18 + 8 + 16 + 36 + 2) 80 people fraction decimal percent 18 = = 22.5% ______ 0.225 80 22.5% people prefer milk as their favorite drink.

  6. YOU TRY… What is the percent of people who prefer soda? 10% What is the percent of people who prefer other? What is the percent of people who prefer water? 2 .5 % What is the percent of people who prefer juice? 20% 45%

  7. 45 people chose reading 40 people chose with friends 125 people chose with family 143 people chose watching TV 147 chose other How Do You Prefer to Spend Your Time? Family Finish the circle graph by filling in a percent for each category Reading 25% 9% Watching TV Friends 8% 28.6% Other 29.4%

  8. Find the angle measures of each section Hint: There are 360o in a circle Food: .33 x 360 =118.8o Rent: .25 x 360 = 90o Savings: .06 x 360 = 21.6o Clothes: .15 x 360 = 54o Misc. : .21 x 360 = 75.6o Hint #2: Check your answer by making sure that they add up to 360o .

  9. Practice: Circle Graph Worksheet

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