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Algebra 1

Algebra 1. Today you will need: Automaticity Folder/Marker Notebook Pencil Calculator Homework. Automaticity.

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Algebra 1

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  1. Algebra 1 Today you will need: Automaticity Folder/Marker Notebook Pencil Calculator Homework

  2. Automaticity If you complete your next level in under two minutes with less than two incorrect, you may move onto the next level tomorrow. When you are finished, please put your paper back in the order it belongs and record your time on your recording sheet. Then, clear everything off of your desk except for your worksheet, pencil and calculator for your quiz.

  3. Date Page # Percent of Increase and Decrease notes Learning Target: I can solve problems involving percent of increase or decrease.

  4. Flashback:solve the following problem. Write an expression that is equivalent to -9a – 6b2 + 9a2 – 8a + 4b2 – a2. Completely simplify the expression -4[(4x + 3y) – 4(2x –y)] . Solvefor n.

  5. Flashback:solve the following problem. Write an expression that is equivalent to -9a – 6b2 + 9a2 – 8a + 4b2 – a2. Completely simplify the expression -4[(4x + 3y) – 4(2x –y)] . Solvefor n. 8a2 – 2b2 – 17a 16x – 76y

  6. Key Terms Percent of Change – ratio of amount of change to original amount. Percent Increase – the new amount is greater than the original amount. Percent Decrease – the new amount is less than the original amount.

  7. When solving for the percent of increase or decrease, use the following proportion:

  8. 1. A coat is on sale. The original price of the coat is $82. The sale price is $74.50. What is the discount expressed as a percent of change?

  9. 2. The average monthly precipitation for Chicago, Illinois, peaks in June at 4.1 in. The average monthly precipitation in December is 2.8 in. What is the percent decrease from June to December?

  10. A store buys an electric guitar for $295. The • store then marks up the price of the guitar to • $340. What is the markup expressed as a • percent change?

  11. In one year, the toll for passenger cars to • use a tunnel rose from $3 to $3.50. What • was the percent of increase?

  12. 5. The population of New Town was 6,750 in the 2000 census. In the 2010 census, the population was 7,763. What was the percent of increase? If the population continues to increase at the same rate, what should be the population in the 2020 census?

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