Indicate the answer choice that best completes the statement or answers the question.

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Ronald Blankenship
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1 Indiate the answer hoie that best ompletes the statement or answers the question. Find the unit rate of 18 teaspoons for 3 ups. a) 6 teaspoons/up b) 15 teaspoons/up ) 54 teaspoons/up d) 18 teaspoons/up Maria rode her biyle 5 miles in hour. What is her average speed in miles per hour? a) mile per hour b) 4 miles per hour ) 7 miles per hour d) 6 miles per hour Caroline wants to give 8 equal size pakets of flower seeds to her friends. She has pound of flower seeds. How muh will eah paket of seeds weigh? a) lb b) lb ) 4 lb d) 16 lb Jimmy runs kilometers in 5 minutes. Rahel runs kilometers in 12 minutes. Whose speed is greater? a) Rahel b) Jimmy ) Their speeds annot be determined. d) Their speeds are the same. Spener was able to drive his ar 420 miles on 12 gallons of gas. At this rate, how many gallons of gas would he need to be able to drive 595 miles? a) 19 gallons b) 17 gallons ) 15 gallons d) 11 gallons Powered by Cognero Page 1

2 Determine whether the relationship between the total number of oins John olleted and the number of weeks he has been olleting them is proportional by graphing on the oordinate plane. Choose the orret answer. John s Coin Colletion Total Coins Time Colleting (wk) Colleted a) No, beause the graph of the line onneting the ordered pairs passes through the origin. b) No, beause the graph of the line onneting the ordered pairs does not pass through the origin. ) Yes, beause the graph of the line onneting the ordered pairs passes through the origin. d) Yes, beause the graph of the line onneting the ordered pairs does not pass through the origin. Powered by Cognero Page 2

3 Mrs. Lenz rented a sooter during her beah vaation. The ost of the sooter rental is shown for different periods of time. What does the point (7, 70) represent? a) The unit rate of $70 per hour. b) The unit rate of $7 per hour. ) The ost of renting the sooter for 70 hours is $7. d) The ost of renting the sooter for 7 hours is $70. Solve eah proportion. = a) 10 b) 24.1 ) 7 d) 5 Powered by Cognero Page 3

4 Use the graph to find the onstant rate of hange of the number of books printed per hour in a printing press. a) b) ) d) Manha and Larry opened savings aounts at the same time. The amount of money in eah of their savings aounts over several months is shown. Whose savings aount has a total amount that is proportional to the number of months the aount has been opened? Explain your reasoning. Powered by Cognero Page 4

5 Sullivan is arranging assettes on shelves. The number of assettes varies diretly with the number of shelves. What is the rate of hange? The university introdued a new advaned musi lass a few years bak. The below table gives the number of students who partiipated in the advaned musi program for the first 4 years. Find the value of the slope and interpret it in words. Years (x) Students (y) Indiate the answer hoie that best ompletes the statement or answers the question. Find eah number. Round to the nearest tenth if neessary. 59% of 71 is what number? a) 47.7 b) ) 29.1 d) 41.9 Powered by Cognero Page 5

6 Laura ordered a set of blue and blak penils. She reeived 120 penils, and 59% of them were blak. About how many blak penils did Laura reeive? a) 72 b) 48 ) 192 d) 120 Last weekend, 5% of the tikets sold at Seaworld were disount tikets. If Seaworld sold 60 tikets in all, how many disount tikets did it sell? Use the perent proportion. a) 60 b) 63 ) 3 d) 57 Write an equation for eah problem. Then solve. Round to the nearest tenth if neessary. What perent of 70 is 84? a) 0.8% b) 1.2% ) 83.3% d) 120% Find eah perent of hange. Round to the nearest tenth if neessary. State whether the perent of hange is an inrease or a derease. 98 feet to 102 feet a) 4.1%, derease b) 3.9%, inrease ) 4.1%, inrease d) 3.9%, derease Find the total ost to the nearest ent. $6.95 book; 6.5% sales tax a) $0.45 b) $6.50 ) $7.40 d) $7.69 Powered by Cognero Page 6

7 A ustomer's lunh osts $7.31 after tax. If the ustomer wants to leave a 20% tip, what will the total ost be? a) $5.85 b) $1.46 ) $9.87 d) $8.77 A digital amera osts $185 and the sales tax rate is 5.7%. What is the total ost of the amera after tax. Round to the nearest ent if neessary. a) $ b) $ ) $10.54 d) $ Find the sale prie to the nearest ent. A radio is being disounted 20%. If the sale prie of the radio is $51.44, what was the original prie of the radio? a) $12.86 b) $64.30 ) $41.15 d) $65.05 Find the simple interest earned in a savings aount that pays 5% interest if $500 is deposited for 4 years. a) $100 b) $1000 ) $600 d) $500 Find eah number. Round to the nearest tenth if neessary. What perent of 200 is 1.6? Powered by Cognero Page 7

8 Write an equation for eah problem. Then solve. Round to the nearest tenth if neessary. 71 is what perent of 90? Find the sale prie to the nearest ent. jeans: regular prie, $22 sale prie, $9 Powered by Cognero Page 8

9 Answer Key a a b b b d Larry; Sample answer: The graph of the amount in his savings aount is a straight line through the origin. 10 assettes per shelf To find the rate of hange, pik any two points on the line, suh as (2, 20) and (3, 30). = The number of assettes arranged is 10 for every 1 shelf. = Write as a unit rate. So, the number of assettes arranged is 10 for every one shelf. Powered by Cognero Page 9

10 20 Slope = Definition of slope. = Use (2, 40) and (3, 60). = Simplify. = 20 Divide both the numerator and denominator by the greatest ommon fator. So, for eah year the number of students partiipating in the musi program is 20. This is a positive slope and therefore a positive rate of hange. d a d d a Powered by Cognero Page 10

11 b a 0.8% Set up a proportion to solve for the perent. Rate = 78.9% 59% Powered by Cognero Page 11

Practice Test - Chapter 4

Practice Test - Chapter 4 Use the Distributive Property to write each expression as an equivalent algebraic expression. 1. 6(s + 10) 2. 9(a 4) 3. 5(3 b) 4. 11(m + 7) 5. ENTERTAINMENT Suppose you pay $15 per hour to go horseback