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agenda

agenda. Go over results from yesterday Notes on discounts and markdowns. Part- is the unknown percentage less then the whole Whole-is the unchanged number %-is how much different the part is than the whole 100- is always 100 because percents are based on 100. Class exercise.

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agenda

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  1. agenda • Go over results from yesterday • Notes on discounts and markdowns

  2. Part- is the unknown percentage less then the whole • Whole-is the unchanged number • %-is how much different the part is than the whole • 100- is always 100 because percents are based on 100

  3. Class exercise • What percentage of our class is girls? • What percentage of our class is wearing jeans? • What percentage of our class is blond? • What percentage of our class is a wearing a mostly white shirt?

  4. Part- is the unknown less then the whole • Whole-is the unchanged number • %-what part of the whole is it • 100- is always 100 because percents are based on • 315 is the sale price. It is 20% off. What is the original price

  5. $315 is the sale price. It is 20% off. What is the original price? • Part- is the unknown less then the whole • Whole-is the unchanged number • %-what part of the whole is it • 100- is always 100 because percents are based on • Part=? • Whole=? • %= • 100 • =

  6. Discounts • Discount is the amount (usually money) that is taken off from an original amount • There are also two ways to find what the discount should be • Since Wendy works for Flynnland Park, she gets a 15% discount. She is buying a “Flynn Rules” T-shirt that costs $20. What will be the discount?

  7. Discount • First you can write a proportion • = • *the % is what percent the part is of the whole • Since Wendy works for Flynnland Park, she gets a 15% discount. She is buying a “Flynn Rules” T-shirt that costs $20. What will be the discount? • %= 15 • 100=100 (this is always true) • Part = unknown • Whole = $20 the original cost

  8. Discount • Or you can write equation • part ÷ whole=quantity X 100 • Since Wendy works for Flynnland Park, she gets a 15% discount. She is buying a “Flynn Rules” T-shirt that costs $20. What will be the discount? • %= 15 • 100=100 (this is always true) • Part = unknown • Whole = $20 the original cost

  9. solve • %= 15 • 100=100 (this is always true) • Part = unknown • Whole = $20 the original cost • = • = • = • X=3 so the discount is $3.00

  10. Now we know the discount • Know the discount is $3.00, we subtract it from the original cost • $20.00 - $3.00 • So after the discount her shirt will cost $17.00

  11. Markdowns are done the same way • A store has decided to mark down all their sofas by 20%. If a sofa costs $750 what would the cost be after the markdown? • You try

  12. assignment • Make foldable

  13. Exit ticket • Describe steps to finding percentage of a group • Example • 1. • 2. • 3.

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