The Mathematics of Money

Copyright © 2008, The McGraw-Hill Companies, Inc.

Appendix A Answers to Odd-Numbered Exercises 647

27. $51.29 per thousand


28. 1,071,061 kilowatt-hours; 136,025 kwh saved


29. 28.57%


30. 17.65%


31. 8.70%


32. a) $274.13, b) $205.60


33. a) $11.40, b) 23.08%


34. $11.92


35. 73,885 visitors


36. 33.36%


37. 22.01%


38. a) $25,988.24; b) $267.92, $27,059.92;
    c) 4.12%

Chapter 8 Section 8.2

1. a) 21.92%, b) 50.00%, c) 41.60%, d) 34.82%


2. $256.42; 34.19%


3. 35.83%


4. $3.23; $14.72


5. $6,346,015


6. 10.90%


7. a) 13.04%, b)
   29.87%


8. 
   5.0%


9. $22.44


10. a) $14.80, $9.25; b) $81.04, $17.02; c) $22.10,
    $5.07; d) $147.50, $46.49


11. a) $70.22, $7.72, 12.35%; b) $23.75, $8.31,
    53.82%; c) $744.99, $305.97, 69.69%


12. $1.88


13. $44.44


14. $72.35; $25.32


15. 31.91%; 5.12%


16. 
    1.6%


17. $9.82; 75.60%


18. $1.30/pound


19. $67.61


20. It can’t be determined without knowing
    expenses.


21. 26.8%


22. 0.57%

Chapter 8 Section 8.3

1. a) $132,302.20, b) $71,614.64, c) $15,095.40,
   d) $963,704.96


2. $881.27; $17,625.46


3. $41,587.87


4. $138.95


5. a) $3.39, b) 35.40%, c) 54.79% (answers may
   vary slightly due to rounding)


6. 12.16%


7. $53.97


8. a) 44.75%, b) 44.75%


9. a) $31.48 or $40.48, b) $40.48


10. a) 1/29, b)2/10, c)2/1, d) 2/16


11. a) $3,662.87, b)$3,736.70, c) $3,736.70
    23. Gross margin 25%; markup 33.33%
    25. $1.68
    27. a) $5,560.00, b) $17,625.00, c) $23,185.00,
    d) $4,405.15, e) $18,779.85, f) $19,229.85
    29. 36.04%
    31. a) $73.69, b) $53.43, c) 26.20%, d) 20.76%
    33. 40%
    35. 16.55%

Chapter 8 Section 8.4

1. $371,338


2. $21,584.92; $14,226.22


3. 12.42%


4. $5,000; $22,500


5. a) $2,500, b) $1,458.33, c) $11,041.67


6. a) $12,900, b) $12,900, c)

Year

Depreciation

Amount

Depreciated

Value

2007 $12,900.00 $51,600.00

2008 $20,640.00 $30,960.00

2009 $12,384.00 $18,576.00

2010 $7,430.40 $11,145.60

2011 $7,430.40 $3,715.20

2012 $3,715.20 $0.00

13. $813,250


14. a) $59,066.39, b) $59,612.50


15. $26,625


16. End of Year Depreciated Value

2006 $6910

2007 $5750

2008 $4590

2009 $3430

2010 $2270

2011 $1400

21. Years of Use Depreciated Value

1 $26,400

2 $20,800

3 $15,200

4 $9600

5 $4000

23. Cannot be determined. Depreciated value is not
    the same as market value.

Chapter 9 Section 9.1

1. $11.79


2. $2.10


3. $256.13


4. $3.72; $52.01


5. $289.77

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