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Unit 2.3 Notes

Unit 2.3 Notes. Finding Base. The formula from last class. Part = Base  Rate P = B  R. Identify Part, Base and Rate in the following statements:.

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Unit 2.3 Notes

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  1. Unit 2.3 Notes Finding Base

  2. The formula from last class Part = Base  Rate P = B  R

  3. Identify Part, Base and Rate in the following statements: • In the state of Florida, 28.3% of households own a dog. There are approximately 4.8 million households in Florida. 1.4 million households own a dog. • In the United States, there are approximately 330 million people. According to the 2010 Census, 12.4% of those people speak Spanish at home. That is, approximately 41 million people.

  4. Identify Part, Base and Rate in the following statements: • In the state of Florida, 28.3% of households own a dog. There are approximately 4.8 million households in Florida. 1.4 million households own a dog. • In the United States, there are approximately 330 million people. According to the 2010 Census, 12.4% of those people speak Spanish at home. That is, approximately 41 million people. Rate

  5. Identify Part, Base and Rate in the following statements: • In the state of Florida, 28.3% of households own a dog. There are approximately 4.8 million households in Florida. 1.4 million households own a dog. • In the United States, there are approximately 330 million people. According to the 2010 Census, 12.4% of those people speak Spanish at home. That is, approximately 41 million people. BASE

  6. Identify Part, Base and Rate in the following statements: • In the state of Florida, 28.3% of households own a dog. There are approximately 4.8 million households in Florida. 1.4 million households own a dog. • In the United States, there are approximately 330 million people. According to the 2010 Census, 12.4% of those people speak Spanish at home. That is, approximately 41 million people. PART

  7. Say which component of these percent problems is missing (do not solve). • The Johnson family has a monthly income of $6,310. They spend 85% of their earnings and save the balance for the down payment on a house. How much do the Johnson’s spend each month? • The number of people who passed the real estate license exam last year in Manatee County was 419. If this was a 65% pass rate, how many took the exam? PART BASE

  8. Last class: We learned how to find PART Today… We’ll learn how to find BASE

  9. Use the basic percent formula to solve for BASE. P = B  R Solve for B. B = P/R

  10. Example: • 8 is 4% of ______. 8 = 200 .04

  11. Solve for base, using B = P/R • 15 is 10% of ______. • 62 is 1% of ______. • 1.6 is 40% of ______. 150 6200 4

  12. Solve the following problems. • The Johnson family has a monthly income of $6,310. They spend 85% of their earnings and save the balance for the down payment on a house. How much do the Johnson’s spend each month? • The number of people who passed the real estate license exam last year in Manatee County was 419. If this was a 65% pass rate, how many took the exam?

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