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College Algebra K /DC Tuesday , 02 September 2014

College Algebra K /DC Tuesday , 02 September 2014. OBJECTIVE TSW work with percents . QUIZZES are graded. Bring batteries/battery money to me at the beginning of the period. ASSIGNMENT DUE WEDNESDAY/THURSDAY WS Percents. Form A 3 22 37 / 15 15 / 4 cups 13 1 / 3 %

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College Algebra K /DC Tuesday , 02 September 2014

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  1. College Algebra K/DCTuesday, 02 September 2014 • OBJECTIVETSW work with percents. • QUIZZES are graded. • Bring batteries/battery money to me at the beginning of the period. • ASSIGNMENT DUE WEDNESDAY/THURSDAY • WS Percents

  2. Form A 3 22 37/15 15/4 cups 13 1/3% 58 7/12 yds. $853.02 98.6 126 min 23 1/3% 120 females 6 times Form B 1 10 26/15 15/8 cups 20% 47 5/12 yds. $733.32 98 136 min 32.35% 152 females 14 times QUIZ: Algebra Review

  3. Percents • Percentmeans per one hundred. Ex:21% means 21 out of one hundred or 21/100. • The word of means multiply. The word is means equals. Ex: What is 30% of 18? x = 18(30/100) x = 27/5 or 5.4

  4. Percents • When something involves a discount with a “new” price and an “old” price, use the relationship Ex: A pair of jeans originally sold for $34.99, but is discounted to $26.99. What is the rate of discount?

  5. Percents Ex: Walmart sells Mr. Coffee coffee makers for $15.99. This is a 17% mark down from the original price. What was the original price?

  6. Percents • To determine total cost of a sale, multiple the tax rate by the cost of the item and add it to the cost of the item. Ex: A new television costs $499.95. The tax rate is 8.25%. What is the total cost of the television? or

  7. Percents • To determine the retail price of an item (before tax), do the opposite. Ex: Bill paid $177.52 for his new DVD player. This amount includes the tax, which has a rate of 8.25%. What is the retail (list) price of the DVD player?

  8. Assignment • WS Percents • Due tomorrow, 04 September 2013 • REMINDER: TEST on Monday.

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