Job 29 Job 29 Earning Money for Expenses Answers EARNING MONEY FOR EXPENSES Weekly Tracy earns $ 115.00 a week, which goes toward her car 38. payment and leisure money. The money left over is Total Earnings ....main $115.00 39. spendable cash. Tracy wants to buy a game system with Price of Game System .......$343.00 Car Payment 40. this money. Sales Tax (776%) ....... 38. + ($150/month)....... 40. - 41. To work Problems 38-41: 1. Multiply the price of the game system (343,00) Total Cost of Game Leisure Money ...... - 35.00 42. by 07875 (7 7:'M) to calculate the sales tax. System .netassets:: 39. Spendable Cash .... 41. 43. 2. Add the sales tax to $343.00 to calculate the total 44. cost of the game system. 45. J. Divide the monthly car payment by 4 to calculate Plan A the weekly car payment. 46. 4. Subtract the weekly car payment and leisure Total Cost of Spendable Number of Weeks to 47. money from Tracy's weekly total earnings to Game System Cash Purchase Game System calculate her weekly spendable cath. PLAN A = 42. Calculate the number of weeks it will take Tracy to save enough spendable wish to purchase the game system. To work Problem 42 Plan B Divide the total cost of the game system by the amount of weekly spendable cash. Amount Saved PLAN B A La Carte Plate Amount x 5 day's = Weekly on Lunch Lunch Saved Daily Lunches Calculate the amount Tracy will save each week by eating plate lunches fa set menu usually at a special $5.25 $2.70 - 43. * 5 days - 44. price) instead of buying her lunch a la carte teach menu item priced separately), Spendable Amount Saved Total Saved To work Problems 43-17: Cash Weekly on Lunches Weekly I. Subtract the price of a plate lunch (2.70) from the price of an a la carte lunch (5.25) to calculate 45. the amount saved daily. 2. Multiply the amount saved daily by 5 days to Total Cost of Total Saved Number of Weeks to calculate the amount saved weekly on lunches. 3. Add the spendable cash to the amount saved Game System Weekly Purchase Game System weekly on lunches to calculate the total Tracy can save each week with Plan B. 46. 4. Divide the total cost of the game system by the total saved weekly to calculate the number of weeks to 47. Which plan will take Tracy the least amount of time to save enough money purchase the gaine system. 5, Compare the number of weeks to To purchase the pieJob 29 School-Related Mathematical Problems | Job cy CARIN CALCULATING A COLLEGE GRADE Calculating a College Grade Point Average Answers POINT AVERAGE 23. 12 Jessica's older brother is calculating his college grade Each Semester's Effect on GPA Letter Grades and Number Values 24. point average (GP) for the wmeier, As a wound- Semester Effect on GPA Grade Value semester sophomore, his grades are IN4 of his cumu- 25 Litive GPA Lach letter grade IA, 1, C, D. P h given a 26. 1/2 27. SEMESTER GPA 28. 1/4 29. To work Problems 21-10 1. Multiply thee Hours for each clans Column C) 1/5 30, by the Number Values iColumn M. Record your 1/6 31. 7.56 antwon in Column D, Couric Points 1/7 32. 2. Add Column C and ircord the Total. 1/B 33. 3, Add Column D and record the Total. 34. 3.56 4. Divide the toul of Column D by the total of Semester GPA Column C to calculate the fourth imeier's GPA 35. Record your answer in Column D. (A) (D) 36. Course 37. OVERALL GPA Number Grades Points To work Problems Ji-17: Semester & Courses Values Hours 1. Record the fourth wmeve's GPA in the GPA for Stathbles I 23. 12 Scumber column Marketing Revearch 24. 2. Add the first semester's GPA Cl.56) to the second Corporate Finance 25. semesters GPA (4,00) and record the answer in the Cumulative GIA column (7.56p Business Communication 26. 1. Add the third viewers GPA to 7-56 and proord Art History 27. the new total in the Cumulative OFA column. Totals 28. 29 1. Add the fourth semesters GPA to the previous Semester & GPA 30. answer and record the new total in the Cumulative GFA column. 5. Divide each Cumulative GRA by the Semester Nember in calculate the Overall GPA for rach Overall GPA semester Record your answers in the Overall GPA Semester GPA for Cumulative Overall column. Number Semester GPA GPA 3.56 34. 3.56 4.00 31. 7.56 35. 3.40 32. 36.Job 29 Job 29 Calculating a Class Grade CALCULATING A CLASS GRADE Answers Jessica wants to earn an A in her biology class, Calcu- Week Homework Grades Classwork Grades B. late the grade Jewica needs on her final exam to earn in A. The final is worth 20% of her total grade. Also calculate the grade she needs to keep her B. The grad- 10. ing scale at her high school is: 92 86 11. 90-100-4 80-89-8 70-79-C 60-69-D 6-59-F 81 91 12. To work Problems 8-18: 13. I. Add the column of Homework Grades to calculate 10 79 92 the Total. Divide the Total by 9 tthe number of 12 85 93 14. weekly grades, to calculate the Average, Round 14 95 15. the Average is a whole number. 87 16. 2, Repeat step 1 for the Classwork Grades. 17. 1. Record the Homework and Classwork Averages 18. (answer 9 and 1 1) in the Grade Average column. Total B. Total 10. 19. 4. Multiply each Grade Average (Homework, Claws Average 9 Average 11. work, and Tests 1, 2, 3, and 4 by the comespond 20. ing Percent of Total Grade. Round the answer to 21. to decimal places. Add each anwer to the mem Grade Percent of Percent of 22. ory. Record your answer in the Percent of Grade Average Total Grade Grade Average Average column. 5. Becall the memory to obtain the Total Percent of Homework 10% 12. Grade Average. Classwork 10% 13. To work Problems 19-20: Test ! 15% 14. 1. Beyond the Total Percent of Grade Average (answer 18j on line b. subtract line b from line Test 2 15% 15. a 190 00 is the minimum grade niceded for an Al Test 3 15% 16. Record your answer on line c. 93 15% 17. 1. Divide line c by 26 (what the final exam is worth Total 18. and noord your answer on line d. Jesica needs this grade on her final crim to cam in A in the class To work Problems 21-22 Final Grade Needed for an A Final Grade Needed for a B 1. Record the Total Percent of Grade Average Line a 50-00 Line e 80.00 (answer 18) on Line I Subtract line | Tium line Line b Line f 18DOD is the minimum grade needed for a By Line c 19, Line g 21 Beenid your answer on line g- Line d . 20% 20. Ling h + 20% 22. 2. Divide line g by art and record your anniver on line h. Jessica needs this grade on her final exam in carn a bl in the class.Job 29 School-Related Mathematical Problems | Job School-Related Mathematical Problems SAHE LEARNING OBJECTIVE School Year Budget Answers Perform calculations involving school-related mathe. matical problems. SCHOOL YEAR BUDGET 1. 2. SCHOOL YEAR BUDGET Line Column A Column B 3. Jessica's father asked her to prepare a budget for her a, Lunch Money 4. senior year in high school so that he can catimate $5.10 x 5- 36 - 1. his experives. 5. b. Gasoline To work Problems 1-7: $2.75 x 5= * 36 - 2. 6. 1. Work the problems in lines a-f. Line at An average lunch in high school costs C. Tickets $5.10. Multiply 5. 10 x 5 (five school days a week) $4.50 x 24 - to calculate the weekly total. Record your answer d. Music Lessons in Column A. Multiply the weekly total by 16 $25.00 x 32 - (16 weeks in a school year) to calculate the yearly total. Record your answer in Column B. e. Application Fees Line Ix The gas to drive to school cous $2.75 each $30.00 x 5 = day. Multiply 2.75 = 5 to calculate the weekly f. Cell Phone total, and record your answer in Column A. Mul- $50.00 x 9- tiply the weekly total by do to calculate the yearly 9. Car Insurance 1,500.00 total, and record your answer in Column B. Line et Tickets to sporting events are $4.50 each. h. Band Trip 150.00 Multiply 4.50 x 24 (24 games to attend), and i. Student Council Camp 110.00 record your answer in Column B. J. Miscellaneous - Entertainment 864.00 Lined: Music lessons cost $25 00 each week. Muluply k. Yearbook 45.00 25/00 x 32, and record your answer in Column B. Line c: Application fees to colleges are $30,00 each. L. Class Ring 360.00 Multiply 30.00 x 5 (five college applications), and m. Graduation Cap and Gown 42.00 record your answer in Column It. Line f: Cell phone service costs $50.00 each month. Total Budget for School Year 7. Multiply 50:00 - 9 (nine months in a school year), and record your answer in Column B. 2. Add each amount in Column B (lines a-m) to APPLICATION FOR YOUR LIFE | Estimating calculate the total budget for the school year. Developing the habit of estimating can start with a school budget. For example, a gasoline cost of $2.75 can be rounded to $3 and multiplied by 5 days a week. You know the answer must be close to $15