High School Challenge

Week Ending 1-23-00

Send Answer to: ucfcasio@pegasus.cc.ucf.edu

Congratulations to Yu Jiang from CHCH Boys' HS, Christchurch, New Zealand. Yu wins the Casio CFX-9850G Color Graphing calculator.

Slick or Boring?

Solve for W, X, Y, and Z in the following system of equations:
W + 7X + 3Y + 5Z = 16
8W + 4X + 6Y + 2Z = - 16
2W + 6X + 4Y + 8Z = 16
5W + 3X + 7Y + Z = - 16.
Explain how you got your answer because it can be done several ways and one of them is really easy (besides using technology).

Please use the following format for your information when responding:

<LI> Your Name. Your ES, MS, or HS, Town, State (2 letter)
Your Grade

Problem answer



Correct Solutions:

  1. Kady Gerry. Middleton HS, Middleton, WI
  2. Brendon Hansen. Newport Harbor HS, Newport Beach, CA
  3. Lisa Schechner. Manorhaven ES, Port Washington, NY
  4. Jason Juang. Sycamore JHS, Cincinnati, OH
  5. Ana Mittal. Montgomery Blair HS, Silver Spring, MD
  6. Jan Nordbotten. Cathedral School, Bergen, Norway
  7. Victor Putra Lesmana. Canisius College. Jakarta, Indonesia
  8. Liyang Chen. Pullman HS, Pullman, WA
  9. Leo Lau. SKH Lam Woo Memorial SS, Hong Kong
  10. Michael Segal. CCA Baldi MS, Philadelphia, PA
  11. Jin Liao. Bogan HS, Chicago, IL
  12. Sibo Zhao. Amador Valley HS, Pleasanton, CA
  13. Johnathan Chung. Barrington HS, Barrington, IL
  14. Cory Fletcher. Lester B Pearson HS, Gloucester, ON, Canada
  15. Sorin Ionescu. John Abbott College, Montreal, Canada
  16. Avinash Kunnath. Jackson Heights MS, Oviedo, FL
  17. Xi Wang. Kelvin HS, Winnipeg, MB, Canada
  18. Matt Elder. Lexington HS, Lexington, SC
  19. Maiyuran Arumugam. James Ruse AHS, Carlingford, NSW, Australia
  20. Mark Bicket. North HS, Edmond, OK
  21. Erin Harness. Upper Lake HS, Upper Lake, CA
  22. Jongmin Baek. Hyde JHS, Cupertino, CA
  23. Dosym Nurmukhanov. Cypress Creek HS, Houston, TX
  24. Eric Hoke. Wayland HS, Wayland, MA
  25. Mike Munson. Newport Harbor HS, Newport Beach, CA
  26. Xuan Wu. John W North HS, Riverside, CA
  27. Romilly Wong. Hornsby Girls' HS, Sydney, NSW, Australia
  28. Tim Hinkel. Bigfork HS, Bigfork, MT
  29. Paul Hedberg. Granite Hills HS, El Cajon, CA
  30. Dragan Stevanovic. Gymnasium Bora Stankovic, Nis, Yugoslavia
  31. Tom Macie. Home School, Oconomowoc, WI
  32. Derya Gulec. Kimberly HS, Kimberly, ID
  33. Yiming Yao. New Westminster SS, New Westminster, BC, Canada
  34. Xing Yun Zhi. George Washington HS, San Francisco, CA
  35. Asher Walkover. Rambam Mesivta, Lawrence, NY
  36. Paul Nichols. NCIVS, Sarnia, ON, Canada
  37. Nicole Nielsen. Oviedo HS, Oviedo, FL
  38. Katrina Spare. St John HS, St John, KS
  39. Jessica Spare. St John JHS, St John, KS
  40. Raju Krishnamoorthy. Cupertino MS, Cupertino, CA
  41. Juan Alba. Donald E Gavit JSH, Hammond, IN
  42. Elias Daher. Sin-El-Fil HS, Beirut, Lebanon
  43. Andrew Tan. Makati Hope Christian School, Manila, Philippines
  44. Nathan Sunukjian. Marina Christian School, Marina, CA
  45. Nathaniel Major. Homeschool, Paso Robles, CA
  46. Mike Nyhan. Pinelands Regional HS, Tuckerton, NJ
  47. Jeff Pillar. Pinelands Regional HS, Tuckerton, NJ
  48. Joshua Powell. Marietta HS, Marietta, GA
  49. Gurlal Singh Brar. Grantite Hills HS, El Cajon, CA
  50. Kendall Matrtin. Grantite Hills HS, El Cajon, CA
  51. Eric Chin. Castro Valley HS, Castro Valley, CA
  52. Jana TanCretie. Windsor HS, Windsor, VT
  53. Tiffany Chao. Seaquam SS, Delta, BC, Canada
  54. Inga Konfisakhar. Westside MS, Omaha, NE
  55. Jonathan Landy. Warren Central HS, Indianapolis, IN
  56. Grace Cheung. South Pasadena MS, South Pasadena, CA
  57. Adam Groce. Haverford HS, Havertown, PA
  58. Radoslav Marinov. Fukaya School, Fukaya, Saitama, Japan
  59. Gionata Gattari. Liceo Scientifico G Galilei, Macerata, Italy
  60. Michael Moyer. The Way Home School, Carlisle, PA
  61. Chris Hogan, Westside MS, Omaha, NE
  62. Jeremy Mickelson. Clement MS, Highland, CA
  63. Lynda Ngo. Highland HS, Gilbert, AZ
  64. Boyan Marinov. Fukaya ES, Fukaya, Saitama, Japan
  65. Anant Gupta. Troy HS, Troy, MI
  66. Kelsey Nyholm. Livermore HS, Livermore, CA


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