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© Mark E. Damon - All Rights Reserved © Mark E. Damon - All Rights Reserved Another Presentation © 2002 - All rights Reserved [email protected] © Mark E. Damon - All Rights Reserved Round 2 $ Final Jeopardy $ $ © Mark E. Damon - All Rights Reserved Order of Operatio ns Sub variable into equation Translate Expressions Pot Luck $200 $200 $200 $200 $400 $400 $400 $400 $600 $600 $600 $600 $800 $800 $800 $800 $1000 $1000 $1000 $1000 Final Jeopardy Scores © Mark E. Damon - All Rights Reserved $200 Simplify the expression. 21 + 15 * 4 © Mark E. Damon - All Rights Reserved $200 What is x = 81 21 + 15 *4 21 + 60 81 Scores © Mark E. Damon - All Rights Reserved $400 Simplify the expression. (3+9) /3 /2 © Mark E. Damon - All Rights Reserved $400 What is y = 2 (3+9) /3 /2 12 /3 /2 4 /2 =2 Scores © Mark E. Damon - All Rights Reserved $600 Simplify the expression. 15- 4 * 3 + 2 *7 © Mark E. Damon - All Rights Reserved $600 What is y = 17 15- 4 * 3 + 2 *7 15 - 12 15 - 12 3 + 2 *7 +14 +14 = 17 Scores © Mark E. Damon - All Rights Reserved $800 Insert parentheses to make the statement true. 4*2+3–4*5=0 © Mark E. Damon - All Rights Reserved $800 Answer: 4 *( 2 + 3) – 4 * 5 = 0 4* 5 20 - 20 - 20 = 0 Scores © Mark E. Damon - All Rights Reserved $1000 Compare. Use <, >, or =. 32 / (8-4) 32 / 8 - 4 © Mark E. Damon - All Rights Reserved $1000 Answer: 32 / (8-4) 32/ 8 4 32 / 8 - 4 4 -4 0 Scores © Mark E. Damon - All Rights Reserved $200 The price of getting a t-shirt design created and printed is represented by 8s +15. Using this equation, how much would it cost to get 25 shirts printed? (s = 25) © Mark E. Damon - All Rights Reserved $200 Answer: $215 8(25) +15 = 200 + 15 = $215 Scores © Mark E. Damon - All Rights Reserved © Mark E. Damon - All Rights Reserved $400 The cost for a membership at Lawrence Athletic Center is $99 to join, and $30 a month. The equation for this is 30m +99. How much would it cost to join for one year? (m= 12) © Mark E. Damon - All Rights Reserved $400 Answer: $459 30(12) + 99 = cost 360 + 99 = $459 for one year Scores © Mark E. Damon - All Rights Reserved $600 Wedding Planners charge a rental fee of $350, plus $15 per person for a wedding reception. The equation for this is 15p + 350. How much would the reception cost altogether if 200 people attended? (p = 200) © Mark E. Damon - All Rights Reserved $600 Answer: $3,330 15(200) + 350 = cost 3000 + 350 = 3,350 Scores © Mark E. Damon - All Rights Reserved $800 Evaluate the expression below if a = 3, b = 4, and c = 5. 4ab + c *c © Mark E. Damon - All Rights Reserved $800 What is 73 4(3)(4) + 5 *5 48 + 25 = 73 Scores © Mark E. Damon - All Rights Reserved $1000 At one flower shop, to put together a bouquet of flowers, the vase costs $3.50, and flowers are 1.20 apiece. The equation for this is 1.20f +3.50. What would it cost to create a bouquet of a ten flowers? (f = 10) © Mark E. Damon - All Rights Reserved $1000 Answer: $15.50 1.20(10) +3.50 = cost 12.0 + 3.50 = $15.50 Scores © Mark E. Damon - All Rights Reserved $200 Translate the expression into a math equation. Two times y plus six © Mark E. Damon - All Rights Reserved $200 What is 2y +6 Scores © Mark E. Damon - All Rights Reserved $400 Translate the expression into a math equation. Seven less than b. © Mark E. Damon - All Rights Reserved $400 What is b - 7 Scores © Mark E. Damon - All Rights Reserved $600 Translate the expression into a math equation. M increased by eighteen © Mark E. Damon - All Rights Reserved $600 What is m +18 Scores © Mark E. Damon - All Rights Reserved $800 Translate the expression into a math equation. The quotient of four and y, plus ten © Mark E. Damon - All Rights Reserved $800 What is 4 /y + 10 Scores © Mark E. Damon - All Rights Reserved $1000 Translate the expression into a math equation. Six times d, decreased by 7 © Mark E. Damon - All Rights Reserved $1000 What is 6d - 7 Scores © Mark E. Damon - All Rights Reserved $200 Where could you insert parenthesis to make the following statement true? 4 + 4 + 4 * 4 = 48 © Mark E. Damon - All Rights Reserved $200 What is (4 + 4 +4 ) * 4 = 48 Do () first- 4 +4 + 4 = 12 Then 12 * 4 = 48 Scores © Mark E. Damon - All Rights Reserved $400 Evaluate the expression 3, X when x=4 © Mark E. Damon - All Rights Reserved $400 What is 64. Replace the x with 4 to give you 43 means 4 * 4 * 4 4 * 4 = 16 * 4 = 64 Scores © Mark E. Damon - All Rights Reserved © Mark E. Damon - All Rights Reserved $600 Show math work to explain why 4 + 4 + 4/4 is not the same as (4 + 4 +4) /4 © Mark E. Damon - All Rights Reserved $600 4 + 4 + 4/4 is not the same as (4 + 4 +4) /4 4 + 4 + 4/4 (4 + 4 +4) /4 You would have to do 4/4 first which would give you You would have to do (4 + 4 + 4) first, which would give you 4+4+1=9 12/4 = 3 Scores © Mark E. Damon - All Rights Reserved $800 Let’s see what you remember about factorials!!! Answer the following: 3! = ? 4! = ? 5! = ? © Mark E. Damon - All Rights Reserved $800 Solution: 3! = 3 * 2 * 1 = 6 4! = 4 * 3 * 2 *1 = 24 5! = 5 * 4 * 3 * 2 * 1 = 120 Scores © Mark E. Damon - All Rights Reserved $1000 Oh no! It’s the hardest order of operations problem ever!!! And no, you can’t use a calculator! Good luck! 42 * (52 – 104/2) * 451 /34 + 1 © Mark E. Damon - All Rights Reserved $1000 Solution: 1 42 * (52 – 104/2) * 451 /34 + 1 42 * (52- 52) * 451/34 + 1 42 * 0 * 451/ 34 +1 0 * 451/ 34 + 1 Scores 0+ 1=1 © Mark E. Damon - All Rights Reserved $200 Write 64% as a reduced fraction. © Mark E. Damon - All Rights Reserved $200 Solution: 16/25 Put 64/100 Figure out what goes into 64 and 100 64 /4 = 16 100/4 = 25 Scores © Mark E. Damon - All Rights Reserved $400 Write 18% as a reduced fraction. © Mark E. Damon - All Rights Reserved $400 Solution: 9/50 18 /2 = 9 100 /2 = 50 Scores © Mark E. Damon - All Rights Reserved $600 Fill in the chart below. Fraction Decimal Percent 1/5 .4 200 .75 © Mark E. Damon - All Rights Reserved $600 Fraction Decimal 1 5 40 100 200 100 75 100 To change a fraction to a percent, make a proportion. Use your fraction, set it = x/100, and solve. 2/5 x 100 .20 or .2 Percent 20% .4 40% 2 2.00 200 3/4 .75 75% To change a percent to a fraction, put the percent over 100 and reduce. To Change a Decimal to a Percent, move the decimal Two places to the right. Scores © Mark E. Damon - All Rights Reserved $800 In order to call off school, 20% of the school population must be sick and absent. If we have 680 students at school, how many would need to be sick in order to have school called off? © Mark E. Damon - All Rights Reserved $800 Solution: 136 students PART % = WHOLE 100 X 680 13600 136 = = = 20 100 100x x Scores © Mark E. Damon - All Rights Reserved $1000 Colgate, the company that makes toothpaste, currently has 36,800 employees that make up its workforce. 4,440 people are expected to lose their jobs because the company is losing money. What percent of the employees will lose their jobs? Round to the nearest percent. © Mark E. Damon - All Rights Reserved $1000 Solution: About 12% of the employees will lose their jobs. PART % = WHOLE 100 4,400 x = 36,800 100 440,000 = 36,800x 11.9% = x Rounded to the nearest percent = 12% Scores © Mark E. Damon - All Rights Reserved $200 Estimate (no calculator) You have $50 to spend on clothes at a store. If you want two shirts that cost $18.95 and $10.85, and a pair of pants that cost $23.75, will you have enough money. Show what you would round to. © Mark E. Damon - All Rights Reserved $200 Solution: No; $18.95 + $10.85 + $23.75 Rounded( So I could do the math in my head:) 20 +10 +25 = 55 No; I would not have enough money to buy all three things Scores © Mark E. Damon - All Rights Reserved $400 I went to the store to buy as many CD’s as I could. CD’s cost $18.87 apiece, and I have $59 dollars in my pocket. Estimate how many CD’s could I buy. © Mark E. Damon - All Rights Reserved $400 Solution: What is 3 Rounded: 60 / 20 = 3 Scores © Mark E. Damon - All Rights Reserved $600 Round to the nearest ten to estimate (no calculator). 87.53 + 12.45 © Mark E. Damon - All Rights Reserved $600 Solution: 100 87.53 + 12.45 Rounded: 90 + 10 = 100 Scores © Mark E. Damon - All Rights Reserved $800 Round to the nearest ten to estimate an answer (no calculator). 182.32 / 89.56 © Mark E. Damon - All Rights Reserved $800 Solution: 2 182.32 / 89.56 180 / 90 = 2 Scores © Mark E. Damon - All Rights Reserved $1000 You have to type a 500 word paper, and type at a rate of 47 words per minute. Estimate how many minutes it would take you to finish typing your paper (no calculators). © Mark E. Damon - All Rights Reserved $1000 Solution: 10 minutes Rounded: 500 / 50 50 / 5 = 10 Scores © Mark E. Damon - All Rights Reserved Proportions! Scores Final Jeopary Question © Mark E. Damon - All Rights Reserved 1) Translate the following word expression into a math equation. Eight times s, increased by 15 2) Solve if s = 10 © Mark E. Damon - All Rights Reserved Solution: 1)8s + 15 2)8 (10) + 15 80 + 15 = 95