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6.1 Enlargement and Reduction

1. enlargement

2. reduction

3. enlargement

4. enlargement

5. reduction

6. reduction

7. enlargement

8. enlargement

10. reduction

11. enlargement

12. reduction

13. 130%

14. 70%

15. 25%

16. 190%

Section 6.1 19. 44%

20. 42%

21. 7%

22. 88%

23. 286%

24. 150%

25. 25%

26. 40%

27. 133%

28. 80%

29. 210%

30. 150%

31. 67%

32. 125%

33. 38%

34. 160%

35. 70%

37. 6.25 in. × _{8.75 in.}

38. 4 in. × _{5.6 in.}

39. 3.25 in. × _{4.55 in.}

40. 10.75 in. × _{15.05 in.}

41. The ratio remains the same; the sides are proportional.

42. $550

43. $121; $3,355

44. A ₌ h

45. Hank Aaron

Player Avg.

Babe Ruth 0.323

Hank Aaron 0.328

Cal Ripken Jr. 0.318

Chipper Jones 0.327

46. 23.7%

47. 29%

Section 6.1 49. 7.2%

50. 298%

51. 69%

52. 350%

53. 281

8%

54. 831

3%

Problem Solving 6—Identify Useful Information

1. amount invested and cost paid per share

2. number of shares and dividend per share

3. missing information: number of original shares or price per share of original shares

4. missing information: number of shares originally owned

5. 35 min.; extra information: the length of the log and that the pieces are equal in length

6. missing information: exam scores and the percent needed for an A

6.2 Discounts

1. $8.00

2. $17.50

3. $9.60

4. $13.00

5. $26.25

6. $22.46

7. $11.70

8. $41.50

9. $8.10

10. $1.97

11. $164.36

12. $19.60

13. $23.50; $70.50

14. $2.84; $53.96

15. $50.98; $76.47

16. $7.68; $88.32

17. $31.56; $178.84

19. $4.35; $68.15

20. $25.05; $58.44

21. $72

22. $127.50

23. $35.91

24. $5.70

25. $1,610.25

26. $4,095

27. $16.77

28. $542.10

29. Bargain Center; $2.50

30. Shoe Barn; $0.15

31. Rooms Galore; $9.25

32. Food Fest; $0.04

33. $4.63

34. $77.70

35. $57.85

Section 6.2 37. $250

38. $76

39. $30.50

40. $260.40

41. G ₌ m

a

42. 27%

43. Jason

Player Free-Throw Percentage

Miguel 42.9%

Jason 62.5%

Parker 58.3%

Daniel 46.7%

Rudy 54.5%

45. 1.205 × ₁₀6

46. 4.672 × ₁₀10

47. 1.92 × ₁₀8

48. 4.31 × ₁₀4

49. 29

50

50. 27

40

51. 13

20

52. 129.6

53. 33.6

6.3 Sales Tax

1. $1.16

2. $1.23

3. $1.54

4. $1.89

5. $8.19

6. $19.64

7. $1.93

8. $19.19

9. $27.76

10. $4.56

11. $92.75

12. $40.56

13. $26.23

14. $6,792.50

15. $296.13

16. $135.10

17. $23.62

19. $729.93

20. $19.88

21. $1.05

22. $51.94

23. $93.63

24. $187.44

25. $286.76

26. $2.17

27. $245.07

28. $23.88

29. $4.58

30. $21.83

31. $88.27

32. $39.51

33. The total is not the same as the original. The tax is

figured after the item is discounted, so the amount of tax is less than the

discount amount.

34. 6%

Section 6.3

36. 8%

37. 5%

38. 7%

39. Yes, he will have $0.28 left after buying the present.

40. 1st store: $88.50, saves $29.50;

2nd store: $82.60, saves $35.40;

2nd store

41. 1st store: $81.90; 2nd store: $68.25; 3rd store: $69.11; yes; 2nd store

42. 19%

43. 64

44. 80

45. 41.7%

46. 1.3664

47. 0.1966

48. 0.028

49. enlarges

50. reduces

6.4 Simple Interest

1. $35

2. $720

3. $896

4. $1,680

5. $324

6. $560

7. $285

8. $10.50

10. $335

11. $4,845

12. $270.20

13. $6,300

14. $4,875

15. $138

16. $1,965.60

Section 6.4 19. $43.20; $403.20

20. $75; $1,575

21. $228; $988

22. $1,443; $5,143

23. $232.20; $1,522.20

24. $190.40; $870.40

25. $776; $10,476

26. $854.25; $14,254.25

27. $6,136

28. $1,863.75

29. $526.75

30. $1,194.75

31. $4,218

32. $2,632.66

33. $40.50

34. $1,837.50

35. $981

37. 9%

38. 5%

39. $3,000

40. 1.5 yr. (18 mo.)

41. 75%

42. 163%

43. 225%

44. 83%

45. 80%

46. 250%

47. n _{= 15}

48. n _{= 27}

49. n _{= 54}

6.5 Commission

1. $34.30

2. $48.09

3. $27.62

4. $68.44

5. $87.12

6. $98.40

7. $313.43

8. $194.93

9. $427.20

10. $1,644.33

11. $750

12. $3,600

13. $1,750

14. $4,200

15. $6,250

16. $800

17. $4,250

19. 12%

20. 30%

21. 15%

22. 16%

23. 9%

24. 7.5%

25. 35%

26. 10.5%

27. $118.75

28. $101.27

29. $846.50

30. $295

31. $510

32. $771

33. $267.90

34. $391.50

35. $657

Section 6.5 37. Multiply $8.65 by 0.16

and add this to $8.65 (or multiply $8.65 by 1.16).

38. $2.05 + $1.03 ≈ _$3.10

39. $3.26 + $1.63 ≈ _$4.90

40. $15.20 + $7.60 = $22.80

41. $246.67

42. $9.00

43. $2.61

44. $38.34

45. $81.11

46. $20.35

47. 21, 24, 27

48. 26, 34, 43

49. 68, 62, 56

6.6 Percent Change

1. 86 increase

2. 15 increase

3. $55 decrease

4. 232 increase

5. 24 decrease

6. $6.75 decrease

7. 26.5 decrease

8. $212 increase

10. 43.4 decrease

11. 13 increase

12. $22.70 decrease

13. 16% increase

14. 25% decrease

15. 40% decrease

16. 32% increase

Section 6.6 19. 130% increase

20. 16% increase

21. 50% increase

22. 4% increase

23. 15% decrease

24. 75% increase

25. 20% increase

26. 25% decrease

27. 64% decrease

28. 125% increase

29. 30% decrease

30. 35% decrease

31. 65%

32. 15%

33. 12%

34. 20%

35. The candy bar is 25% larger.

37. about 25% off

38. about 75% off

39. about 25% off

40. about 50% off

41. $892.50

42. $243.68

43. $832.50

44. $3,862.40

45. 7 and 8

46. 14 and 15

47. 4 and 5

48. 0.84

49. 1.6

Math and Scripture 6

1. 4 ÷ _{2 = 2}

2. 300 ÷ _{3 = 100}

3. 45 ÷ _{15 = 3}

4. 2(2) = 4

5. 3(100) = 300

6. 3(15) = 45

7. you (the seed of Israel)

8. your herds and flocks, your silver and gold, all that you have

9. horses, wives, silver, gold

Chapter 6 Review

1. reduction

2. reduction

3. enlargement

4. neither

5. 88%

6. 270%

7. 140%

8. 33%

10. 75%

11. $13.63

12. $27.71

13. $161.50

14. $394.80

15. $39.16

16. $2,068

Chapter 6 Review 19. $18.69

20. $398.31

21. $156.54

22. $23.66

23. $1,657.50

24. $465

25. $3,900

26. $883.20

27. $7,296

28. $597.40

29. $78.08

30. $821.80

31. $101.50

32. $277.55

33. $6,850

34. 24%

35. 15 increase

37. $14.25 decrease

38. 76 increase

39. 20% decrease

40. 60% decrease

41. 15% increase

42. 125% increase