VIEWS: 4 PAGES: 15 POSTED ON: 3/4/2011
Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #1 Fra. Dec. Per. Write each percent as a fraction in simplest form. 1. 25% 2. 70% _____________ _____________ Explain how you solved #1_____________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Write each percent as a decimal. 3. 235% 4. 0.1% __________ __________ Explain how you solved #3 _____________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Write each decimal as a percent. 5. 0.87 6. 0.005 __________ __________ Explain how you solved #5 _____________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Write each fraction as a percent. 3 7 13. 15. 5 10 __________ __________ Explain how you solved #13____________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #2 %’s < 1 and > 100 Show your work for each question and explain your work when necessary. 1. What is 0.5% of 50? 2. What is 150% of 90? 3. The cost of a new car has increased 400% over the past fifteen years. What would a car which was priced at $6200.00 fifteen years ago cost in today’s economy? Show your work. Explain your answer: ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ 4. During a very hot week one summer the amount of water in a pool decreased, due to evaporation by 0.7%. If at the beginning of the week there was 30,000 gallons of water in the pool, how many gallons of water had evaporated? Show your work. Explain your answer: ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #3 Tax 1) Find the amount of tax at 8.25% on $52.39 2) What is the total amount you would pay for a pair jeans that cost $26.99 if the tax rate is 7.25%? 3) If you buy clothes that cost a total of $132.48, how much would you save if you shop in a county with sales tax rate of 7.25% compared to a county with a sales tax rate of 8.25%? 4) Ben wants to buy a guitar. The regular price of the guitar is $329.99. The sale price of the guitar is 25% off of the regular price. Part A What is the sale price of the guitar? Show your work. Answer $ Part B Ben must pay 7.25% sales tax in addition to the sale price of the guitar. What is the total amount Ben must pay for this guitar? Show your work. Answer $ Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #4 Tip 1. Anneke and her parents had dinner at their favorite restaurant. The dinner bill was $50.00, and her parents tipped their server 20% of the bill. How much money did Anneke’s parents leave as a tip? 2. If a family goes to a restaurant and wants to leave a 20% gratuity, calculate the amount of the gratuity if the total of their check is $48.28. 3. Ben went to the Northfield restaurant for dinner. They purchased the NY Strip Steak for $19.95, a drink that cost $2.50 and a piece of chocolate cream pie that cost $3.95. Part A How much tip should they leave if they would like to leave the standard 15%? Show your work Part B If your waiter provided extremely good service, how much tip would you need to leave for a 35% tip? Show your work Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #5 Tax/Tip Directions: Find the tax of each of the following items. 1. Original price of a book: $49.95 Tax: 8% 2. Original price of a book: $90.50 Tax: 4% 3. Original price of an MP3 player: $99.50 Tax: 7.25% 4. Original price of a microphone: $129.99 Tax: 10% 5. You went to a coffeehouse with friends and ordered an iced coffee and desert, which came to $6.87. How much would you leave if you left a 20% tip? 6. At dinner, your waiter got your orders mixed up and then failed to refill your drink. The bill came to $21.99. Should we leave a good percentage tip or a bad percentage tip? How much would a 12% tip be? Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #6 Sale Price (Discount) 1. Which jacket has the lowest sale price? A 5% off a jacket originally priced at $26.00 B 10% off a jacket originally priced at $26.00 C 15% off a jacket originally priced at $30.00 D 20% off a jacket originally priced at $30.00 2. A pair of sandals is on sale for 20% off the original price. If the original price is $16.00, what is the sale price? 3. A pair of sneakers regularly priced at $109.99 goes on sale for 20% off. Indicate the discount and the sale price. 4. Coretta buys a pair of jeans that is on sale for 20% off. The regular price is marked as $27.00. What is the sale price of the pair of jeans? 5. A television has a price of $315. It goes on sale at a 25% discount. What is the amount of the discount? Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #7 Sale Price (Discount) 1. Bernie bought a shirt that was on sale for 20% off the original price. He also used a coupon that gave him an additional 15% off the sale price of the shirt. The original price of the shirt was $37. What is the new price of the shirt before tax? Explain how you did this problem: ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 2. Jenna wanted to buy a computer desk chair. She saw one in the newspaper advertised for 20% off the original price of $65. When she went to the store, she was able to save another 10 percent off that sale price due to a daily special. What was the new price of the computer desk chair? 3. A department store discounts everything in the store 10%. Radios that originally cost $96 are on sale with an additional 10% off the already discounted price. What is the cost of the radio before tax? 4. Mr. Smith wants to by a $40 sweater that is on sale for 15% off. He has a coupon that will take an additional 10% off the already discounted price. How much will Mr. Smith have to pay for the sweater before tax? Explain how you did this problem: ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #8 Interest Find the missing value. 1. p = $6000, r = 4%, t = 2 years 2. p = $3200, r = 6%, t = 4 years I = _______ I = _______ 3. I = $180, r = 5%, t = 3 years 4. I = $144, p = $800, t = 3 years p = _______ r = _______ 5. Create you own interest problem and solve it. Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #9 Commission 1. Sarah earned a 4% commission on all of her sales in March. Her total sales were $80,000 in March. How much money did she earn from commissions? 2. Ramona is a travel agent. She receives a 6% commission on vacation package sales. Part A How much commission will Ramona make if she sells $3,600 in vacation packages? Show your work. Part B Ramona receives an additional 2% bonus on the sale of vacation packages during February. What would be her combined commission and bonus if she sells 3,600 in vacation packages during February? 3. A salesperson earns a commission of 2% of the selling price for every new car that is sold. How much commission will a salesperson earn for a car that sells for $17,500? Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #10 Percent Change Janet made this chart of her expenses in April and May. Complete the chart. Expense April May Increase Amount of Percent of or change change Decrease? Travel $40 $50 Food $225 $250 Entertainment $45 $100 Rent and $400 $360 Utilities Clothing $155 $100 Other $135 $110 TOTAL $1000 $970 Use this space for your work: Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #11 Percent Change Directions: Find each percent of change. Describe the percent of change as a percent of increase or decrease. Round your answers to the nearest tenth of a percent, if necessary. 1. 8 to 22 2. 90 to 81 amount of change 22 – 8 = ____ amount of change 90 – 81 = ____ original amount ______ original amount _____ Percent of change = _____________ Percent of change = _______________ 3. 125 to 200. 4. 400 to 60 Percent of change = ____________ Percent of change = ______________ 5. Explain how you solved #4 (from above). __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #12 Review Solve each question carefully. She you work for every question. 1. What is 0.00008 written as a percent? 3 2. Change to a percent. 5 3. Sweatshirts are 40% off the original price of $59. What is the sale price of the sweatshirts? 4. You and your parents went to the store. The total of you items came to $55. If the tax is 7%, how much would the tax be on your purchase? 5. Bob took out a loan on $5000. He received a rate of 5% for 6 years. How much interest will he have to pay? 6. Riley earns 10% commission. She sold $450. How much commission did she earn? 7. Pete went to a store to buy a shirt. He saw that shirts were on sale for 15% off. The specific shirt he wants is also on sale for an additional 10% off of the sale price. How much does the shirt cost now? 8. Find the percent of change is 95 is decreased to 20. 9. $59 is increased by 15%. What is the new price? Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #13 Estimate %’s 1. Jordan has $608 in his savings account. He withdraws 15% of the money to pay for school clothes. Which is the best estimate for the amount of money Jordan withdraws? A $40 B $90 C $400 D $510 2. The cost of Cynthia’s dinner is $15.20. She pays an additional tip that is 20% of the cost of the dinner. What is the best estimate for the amount of the tip? A $2.00 B $3.00 C $4.00 D $5.00 3. There were 35,489 fans in attendance at a football game. If 20% of the fans were wearing team shirts, about how many fans were wearing team shirts? 4. Jose says that 25% of the middle school's 500 students walk to school each day. Aki say that is approximately 40 students who walk to school each day. Estimate to determine if Aki is correct and justify your response in writing. Name: _______________________________ Date: _____________ Block: ______ Percents Unit Homework #14 % Word Problems