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Lesson 23 Rate of Change Science – Grade 7 Week of March 17 – 28 Session # 5

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Sample Test Questions Question 1 Victorias family drove 672 miles in 14 hours. What was the average rate of speed for the trip? A50 mph B48 mph C45 mph D42 mph

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Question 2 At Kenneths school, tickets for a concert were sold at a rate of 40 tickets per half hour. How many tickets will be sold in 7 hours? A280 B470 C560 D740

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Pie Production

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Question 3 The graph shows the number of pies produced at a bakery as a function of time. What is the rate of pie production? A10 pies per hr B15 pies per hr C30 pies per hr D60 pies per hr

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Question 4 Clarissa made 18 gift baskets in 3 hours. How many gift baskets can she make in 5 hours? A15 B27 C30 D54

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Growth of Marthas Plant HEIGHTINCHESHEIGHTINCHES

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Question 5 The graph shows the growth of a plant in Marthas window box. What is the rate of growth of Marthas plant? A½ in per week B1 in per week C2 in per week D5 in per week

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Question 6 Carla read 90 pages of her novel in 2 hours. How many pages can she read in 7 hours? A45 B315 C520 D630

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Question 7 Katrina rode a bus that traveled 17 miles every 20 minutes. The bus stayed at a constant speed for the entire trip. A.Hour far does the bus travel in 1 hour? _____ B.Haw far will the bus travel in 1 ½ hours? _____

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ANSWERS 1.B48 MPH 2.C560 3.B15 pies per hour 4.C30 5.B1 inch per week 6.B315 7.A. 51 miles B miles

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Progress Check Question 1 What are the next two numbers in this pattern? 1.2, 1.9, 2.6, 3.3, 4.0, … A4.2, 4.9 B4.7, 5.4 C4.7, 5.7 D5.2, 5.9

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Question 2 What is the missing number in this pattern? 60, 58, 56, 54, ___, 50, … A59 B53 C52 D51

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Question 3 Solve for x: 8x = 72 A8 B9 C10 D11

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Question 4 What is the solution of this equation? x – 8 = 55 Ax = 42 Bx = 47 Cx = 58 Dx = 63

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Question 5 Kimberly writes 6 pages every 2 hours. At this rate, how many pages can Kimberly write in 5 hours? A4 B8 C12 D15

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Question 6 Identify the mathematical expression that models this word expression. six less than the quotient of a number and four A6 – n ÷ 4 Bn/4 + 6 Cn/4 – 6 D6 – 4/n

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Question 7 Solve for J: 4J = 36 A9 B32 C40 D144

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Question 8 Mark wrote the pattern below. 10, 15, 20, 25, 30, ___, 40, … A What is the rule for this pattern? B What is the missing number in the pattern? C The seventh term in the pattern is 40. What are the eighth and ninth terms?

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Question 9 Kalmi wrote the following word expression: five less than a number is equal to seven A Write a mathematical sentence that models the word sentence above. (let n represent the number) B Solve Kalmis mathematical sentence. Show your work.

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Question 10 The graph shows the growth of Sayeeds plant.

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10. A How much does the plant grow in 1 week? 10. B How tall will the plant be after 10 weeks? Explain your reasoning.

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Answers 1.B4.7, C53 3.B 9 4.Dx = 63 5.D15 6.Cn/4 – 6 7.A9

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Answers 8. A.Add 5 B.35 C.45, 50

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Answers 9.A.n – 5 = 7 B.n – 5 = n = 12

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Answers 10. A. ½ cm 10.B.The plant will be over 5 cm tall after 10 weeks. The growth is ½ cm per week.

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