Transcription of 2-10 Percent Increase and Decrease
1 Name _____ Date _____ Class_____ Original content Copyright by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor. 2-84 Holt McDougal Algebra 1 Practice B Percent Increase and Decrease Find each Percent change. Tell whether it is a Percent Increase or Decrease . 1. 8 to 10 2. 50 to 20 3. 120 to 54 _____ _____ _____ 4. 12 to 96 5. 72 to 108 6. 2 to _____ _____ _____ Solve each problem. 7. Find the result when 20 is 8. Find the result when 40 is increased by 35%. increased by 64%.
2 _____ _____ 9. Find the result when 68 is 10. Find the result when 120 is decreased by 25%. decreased by 15%. _____ _____ 11. A pharmacy discount card gives the user 40% off prescriptions. Mr. Allen s cholesterol medication normally costs $ What is the final price with the discount card? _____ 12. A gas station purchases fuel at a wholesale price of $ per gallon. The price is marked up 8%. What is the selling price per gallon? _____ 13. San Francisco s Bay Area Rapid Transit (BART) sells $48 tickets at a discount price of $45. What is the Percent discount?
3 _____ 14. A recording company sells a music CD for the wholesale price of $ A record store marks up the price to $ What is the markup as a Percent ? _____ Find each missing number. 15. 50 increased by 20% is _____. 16. 10 increased by _____ % is 30. 17. 200 decreased by 55% is _____. 18. 60 decreased by _____ % is 45. LESSON 2-10 Original content Copyright by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor. A23 Holt McDougal Algebra 1 8. a. $ b. $ c. $ d. $ e. $ Review for Mastery 1.
4 112 2. 14 3. 32 4. $15 5. 4 years 6. $1200 7. $ 8. $ 9. $13 10. $ 11. $26 Challenge 1. $ 2. $ ; $ ; $ 3. $ ; $ ; $ 4. $ ; $ ; $ 5. $ ; $ ; $ 6. $13 7. 16 = x + + 8. $ 9. 56 10. $20 56 $ Problem Solving 1. $ 2. $ 3. 4. $24 5. C 6. G 7. D 8. H 9. B Reading Strategies 1. total pay = 52,600 + 842,000; $69,440 2. simple interest = 6300 5; $1575 3. tip = ; $ 4.
5 Tax = 24,500; $ LESSON 2 10 Practice A 1. 110; 110; 44; 110; 40; 2. ; ; ; ; $ ; $ 3. 20% Decrease 4. 300% Increase 5. 26 6. 49 7. 70 8. 20% Practice B 1. 25% Increase 2. 60% Decrease 3. 55% Decrease 4. 700% Increase 5. 50% Increase 6. 35% Decrease 7. 27 8. 9. 51 10. 102 11. $ 12. $ 13. 14. 56% 15. 60 16. 200 17. 90 18. 25 Practice C 1. 4% Decrease 2. 42% Increase 3. Decrease 4. 5. 6. $ 7. 8. Decrease 9. Increase 10. 10, 11. Review for Mastery 1. 20% Increase 2.
6 40% Decrease 3. 50% Increase 4. 75% Decrease 5. Decrease 6. 150% Increase 7. 8. $ 9. $49 10. 40% Problem Solving 1. $ 2. 13% 3. 276,375 4. $24; $ 5. B 6. H 7. A
