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• Количество слайдов: 16 3 rd / 6 th Periods Tues, 10/12/10 SWBAT… solve one-step equations and apply equations to a business discussion Agenda 1. WU (5 min) 2. Questions on hw#6/#7 (10 min) 3. Quiz (15 min) 4. Profit discussion (15 min) Warm-Up: Solve each equation: 1. -x = 3. 14 (Hint: the coefficient of x is -1) 2. (Hint: multiply each side by the reciprocal of 3. (Hint: this eqn is the same as HW#4 – Determining Profit ) ) 1. 2. 3. 4. 5. Questions from hw#6 or hw#7 Take out your week 5 agenda and a red pen The back of the agenda problems is the quiz You will have 10 minutes You may use your notes and a calculator Extra Credit: Solve each equation. Show all work to get extra credit! 1. 4 x + 56 = 1158 2. 2 + 5 k = 3 k – 6 Q 1 -3: Write each number in scientific notation: 1) 0. 000417 = 4. 17 x 10 -4 2) 297, 000 = 2. 97 x 105 3) 134 = 1. 34 x 102 Q 4 -7: Write each number in standard notation: 4) 3. 46 x 107 = 34, 600, 000 5) 6. 612 x 10 -3 = 0. 006612 6) 3 x 108 = 300, 000 Q 7 – 8: Write an expression and solve: 7. ) 20% of 80 (0. 20)(80) = 16 8. ) 0. 5% of 800 (0. 005)(800) = 4 Q 9 -10: Write an equation to model the question and solve. 9) What is 10% of 100 x = (0. 10)(100) x = 10 10) 5% of 10 is what number? (0. 05)(10) = x 0. 5 = x 8 th Period Tues, 10/12/10 SWBAT… solve one-step equations and apply equations to a business discussion Agenda 1. WU (5 min) 2. Questions on hw#6/#7 (10 min) 3. Profit discussion (25 min) Warm-Up: Solve each equation: 1. -x = 3. 14 2. 3. (Hint: the coefficient of x is -1) (Hint: multiply each side by the reciprocal of (Hint: this eqn is the same as HW#4 – Determining Profit ) ) In your group, work on hw#4 – determining profit Definitions: n Sales or revenue: an amount of money regularly coming in. n Profit: the monetary surplus left to a producer or employer after deducting wages, rent, cost of raw materials, etc. n Manufacturing costs: the costs associated with making or producing anything. n Wed, 10/13/10 SWBAT… work with each other to apply what is learned in class Agenda 1. Read the entry document and rubric(10 min) 2. Work on projects (30 min) Warm-Up: 1. 2. Read the entry document and the rubric On the poster board in the front of the classroom, write any “Need to Knows. ” (Read the rubric first!!) Review hw#1 – #6 (make sure you know how to do all the material learned so far!) AND Work on projects! Thurs, 10/14/10 SWBAT… apply tax and discount to real-life situations Agenda 1. WU (10 min) 2. Two tax/discount problems (10 min) 3. Work on projects or practice tax and discount (20 min) Warm-Up: 1. You buy a jacket for \$95. 00. The state tax is 6%. What is the new price of the jacket? 2. You buy eye glasses that cost \$125. 00 They are discounted by 30%. How much will you pay for the eye glasses? HW#7 – Tax and Discount (for those that want additional practice – please ask me for this hw) Directions: Find the new price of the item Jacket: \$95. 00 Tax: 6% 6% of the price of the jacket. 0. 06(95) = 5. 7 Add the tax to the original price of the jacket: \$95. 00 + \$5. 70 = \$100. 70 (Prob #1 on the hw) Directions: Find the new price of the item Eye glasses: \$125. 00 Discount: 30% of the price of the eye glasses. 0. 30(125) = 37. 5 Subtract the discount from the original price of the jacket: \$125. 00 – \$37. 50 = \$87. 50 (Prob #6 on the hw) Find the final price of the television Television price: \$375. 00 Discount: 25% Tax: 10. 25% (Chicago’s tax) Step 1: Find the discount price Step 2: Find the price of the tv with the discount (subtract discount) Step 3: Find the tax of the tv from the discounted price Step 4: Find the final price of the tv including the tax amount (add tax) Step 1: 25% of 375: (0. 25)(375) = 93. 75 Step 2: New price with discount: 375 – 93. 75 = 281. 25 Step 3: 10. 25% of 281. 25: (. 1075)(281. 25) = 28. 83 Step 4: Final price of the T. V. : 281. 25 + 28. 83 = 310. 08 New price of T. V. = \$310. 08 Source: http: //saxo. dailyherald. com/article n n n The sales tax within Chicago's city limits will drop to 9. 75 percent from 10. 25 percent. Even with the decrease, Chicago's tax is still tied with Los Angeles for the highest sales tax of any big city in the country. On a \$20, 000 car, what is the sales tax savings? 0. 50% = (0. 005)(20, 000) = 100 On a \$20, 000 car, the sales tax savings is \$100. HW#7 -Tax and discount is optional for those that want some additional practice! n For the next 20 minutes, work on your project n Tax n n With tax, you should add the tax amount to the price of the item. Definition: A sum of money demanded by a government for its support or for specific facilities or services, levied upon incomes, property, sales, etc. Discount n n With discount, you would subtract the discount amount from the price of the item. Definition: To offer for sale or sell at a reduced price. Answers to hw#7 1. 2. 3. 4. 5. 6. 7. 8. \$100. 70 \$87. 00 \$1. 04 \$21. 25 \$37. 49 \$90. 30 \$310. 08 \$206. 46 