TEST NAME: Percent Practice TEST ID: GRADE:07 - Seventh Grade SUBJECT: Mathematics TEST CATEGORY: Shared Classroom Assessments
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1 TEST NAME: Percent Practice TEST ID: GRADE:07 - Seventh Grade SUBJECT: Mathematics TEST CATEGORY: Shared Classroom Assessments Percent Practice Page 1 of 8
2 Student: Class: Date: 1. A light bulb company checked a random sample of 30 bulbs in the warehouse. Of the sample bulbs, 28 worked and 2 did not. A hardware store ordered a case of 144 light bulbs from this company. What would you expect to be true about the bulbs that the hardware store receives? A. All of the bulbs will work. B. Exactly 2 of the bulbs will not work. C. About 10 of the bulbs will not work. D. At least 30 of the bulbs will not work. 2. Scientists tag and release a group of salmon after they hatch. Later, they catch a sample of salmon that return to the river and check them for tags. In one sample, 40 out of 800 returning salmon have tags. What is the best prediction of the total number of tagged salmon in a sample of 2000? A. 40 B. 90 C. 100 D The Science Club sells boxes of popcorn. Club members have found that one 2-pound bag of unpopped corn will produce about 28 boxes of popcorn. How many boxes of popcorn will most likely be produced by bags of un-popped corn? A. 42 B. 56 C. 60 D Students are enrolling in classes over a two-week period. In the first week, 32 students out of 128 signed up for a digital design class. Based on these results, how many of the next 64 students can be expected not to sign up for the digital design class the second week? A. 16 B. 32 C. 48 D Ms. Ghani surveyed the students in her first-period class about their favorite sport. Of the 30 students, 20 chose soccer. Based on these results, how many of her other 84 students in her next four classes can be expected to choose soccer? A. 21 B. 41 C. 56 D. 64 Percent Practice Page 2 of 8
3 6. Mrs. Crandall spent $42 on window shades that were on sale for a certain percent discount. The original price of the shades was $70. What percent was the discount? A. 72% B. 60% C. 40% D. 28% 7. A store advertises, Buy one shirt and get the second one for half price. During this sale, what is the overall percent savings when a customer buys two shirts that originally cost x dollars each? A. B. C. D. 8. If a snail can crawl yard in hour, how many yards can the snail crawl in 1 hour? A. yard B. yard C. yards D. yards 9. During 2002 a town had a total snowfall of 92 inches, which was an increase of 15 percent from the previous year. What was the total snowfall in the previous year? A. 77 inches B. 78 inches C. 80 inches D. 84 inches 10. Terrence bought a shirt for $12.59 and a backpack for $ If sales tax is 8.25%, which is a reasonable estimate for the amount he paid? A. $51.00 B. $52.00 C. $53.00 D. $ A jacket sells for $ All the merchandise in the store is on sale at a 25% discount. If the sales tax is 8%, what will a customer pay for the jacket? A. $1.50 B. $6.25 C. $18.74 D. $20.24 Percent Practice Page 3 of 8
4 12. The graph below shows the amount of time Kevin spends on various activities each day. If school, doing homework, and traveling in a car take up 9.6 hours of Kevin s day, what percent of his day does he spend traveling in a car? A. 7% B. 5% C. 3% D. 2% 13. Jessie bought a $15 DVD on sale for $12. What percentage discount did Jessie receive on the DVD? A. 3% B. 9% C. 20% D. 25% 14. The Dansbury School District spent $92,639 for after-school programs this year. If the cost of these programs is expected to increase by 3% next year, which estimate is closest to the expected cost of after-school programs next year? A. $64,800 B. $89,900 C. $95,400 D. $120, Mr. Sanchez earned a salary of $49,375 last year. He expects to earn 11% more this year. Which is closest to the salary Mr. Sanchez expects to earn this year? A. $45,000 B. $50,000 C. $55,000 D. $60,000 Percent Practice Page 4 of 8
5 16. A store decreased the price of all its jeans by 20%. If Tara bought a pair of jeans for $30, what was the original price? A. $24.00 B. $36.00 C. $37.50 D. $ The price of gas increases from $2.20 per gallon on Monday to $2.31 per gallon on Tuesday. What is the percent of increase? A. 4.8% B. 5.0% C. 11.0% D. 23.1% 18. Heather sells cosmetics for a local company. During her first month of employment her sales were $60. During her second month her sales were $300. What was Heather s percent of increase in sales? A. 40% B. 80% C. 240% D. 400% 19. The annual projected population growth rate for a country is 1.9%. If the country has a current population of n people, which expression represents their expected population the following year? A n B n C. 1.9n D. 2.9n 20. Which example represents a 25% increase? A. The attendance at the local high school drama production for Friday evening was 400. On Saturday, the attendance was 550. B. The price of gas on Monday was $2.00 per gallon. On Tuesday, the price was $2.25 per gallon. C. Terri s grade on her math test was a 50%. She was able to retake the test and scored a 75%. D. Steve caught 8 fish on Friday. On Saturday, he was able to catch 10 fish. 21. At Williams Middle School, 186 of the 495 students participate in chorus. Approximately what percent of the students are in the chorus? A. 2.66% B. 3.76% C. 26.6% D. 37.6% Percent Practice Page 5 of 8
6 22. John has a large piece of artwork on an 8 foot by 6 foot canvas. Roberta has a piece of artwork on a canvas that is 25% smaller than John s. If the ratio of length to width is the same for the two canvases, what are the dimensions of Roberta s canvas? A. 2 feet by 1.5 feet B. 4 feet by 3 feet C. 6 feet by 4.5 feet D. 10 feet by 7.5 feet 23. Julia plans to buy a pair of in-line skates for $78.99 and 2 shirts for $21.98 each. If the sales tax rate is 6%, what is reasonable for her total purchase amount? A. $110 B. $120 C. $130 D. $ Maxine took out a $9,000 loan to buy a car. By the end of the loan, she had paid 20% of the original loan amount in interest. What was the total amount she paid on the loan with interest? A. $180 B. $1,800 C. $9,180 D. $10, Patricia earns $8 per hour plus 5% commission on everything she sells. Last week she worked 35 hours and sold $10,000 worth of merchandise. How much did Patricia earn last week? A. $220 B. $280 C. $500 D. $ Al invests $250 in a savings account that earns 5% simple interest annually. If he does not make any additional deposits or withdrawals, how much money will be in the savings account after 4 years? A. $ B. $ C. $50.00 D. $ Greg invests $500 in a savings account that earns 4% simple interest annually. If he does not after 5 years? A. $ B. $ C. $ D. $20.00 Percent Practice Page 6 of 8
7 28. Ben invests $450 in a savings account that earns 3% simple interest annually. If he does not after 2 years? A. $13.50 B. $27.00 C. $ D. $ A music store is having a clearance sale. All items are discounted by 15%. What is the sale price of a radio that regularly costs $20? A. $3 B. $10 C. $15 D. $ Craig invests $350 in a savings account that earns 1.5% simple interest annually. If he does not after 2 years? A. $ B. $ C. $10.50 D. $ The formula for simple interest is I = prt where I = the amount of interest, p = the amount of principal borrowed, r = the rate of interest, and t = the amount of time in years. Terri borrows $3500 at an interest rate of 3% and plans on paying her loan over 4 years. Using the interest formula, what is the total amount Terri will have to repay on both the loan and the interest? A. $420 B. $3920 C. $4200 D. $ A computer store is having a clearance sale. All items are discounted by 20%. What is the sale price of a disc drive that regularly costs $50? A. $40 B. $25 C. $20 D. $ A music store is having a clearance sale. All items are discounted by 20%. What is the sale price of a radio that regularly costs $30? A. $6 B. $15 C. $20 D. $24 Percent Practice Page 7 of 8
8 34. Al invests $250 in a savings account that earns 2.5% simple interest annually. If he does not after 2 years? A. $6.25 B. $12.50 C. $ D. $ A computer store is having a clearance sale. All items are discounted by 30%. What is the sale price of a radio that regularly costs $40? A. $12 B. $20 C. $28 D. $ Greg invests $400 in a savings account that earns 6% simple interest annually. If he does not after 2 years? A. $ B. $ C. $48.00 D. $ A computer store is having a clearance sale. All items are discounted by 15%. What is the sale price of a disc drive that regularly costs $40? A. $6 B. $15 C. $20 D. $ A music store is having a clearance sale. All items are discounted by 25%. What is the sale price of a radio that regularly costs $40? A. $30 B. $25 C. $20 D. $ A music store is having a clearance sale. All items are discounted by 40%. What is the sale price of a radio that regularly costs $50? A. $40 B. $30 C. $25 D. $20 Percent Practice Page 8 of 8
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