Math 6A, Lesson 11, Spring 2017, 5/7/2017

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Math 6A, Lesson 11, Spring 2017, 5/7/2017

1. Discount

  • Discount = Marked price – Selling price
  • Percentage discount = ( Discount / Marked_price) x 100%
  • Selling price = (100% – Discount %) x Marked_price

2.  Sales Tax and Income Tax

  • Tax = Tax_rate x Cost
  • Income_tax = Tax_rate x Income
  • Income: wage (hourly-paid), salary (annual basis)

3. Compound Discount

  • Each successive discount is based on the price after the previous discount

4. Home Work:

  • Handout two pages
  • Page 42: 18, 19, 20, 21, 22, 23