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5 Minute Check Write each ratio as a unit rate kilometers in 8 hours 2. $60 for 12 months hot dogs in 24 minutes 4. After working for 24 hours, Zoe made $234. After working for 40 hours, Zoe made $390. Predict how much she would make after 10 hours of work.

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**Write each ratio as a unit rate. 1. 424 kilometers in 8 hours **

5 Minute Check Write each ratio as a unit rate kilometers in 8 hours

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**Write each ratio as a unit rate. 1. 424 kilometers in 8 hours **

5 Minute Check Write each ratio as a unit rate kilometers in 8 hours 424 𝑘𝑚 8 ℎ𝑟𝑠 = 𝑥 𝑘𝑚 1 ℎ𝑟 424 x 1 ÷ 8 = 53 53 𝑠𝑡𝑢𝑑𝑒𝑛𝑡𝑠 1 ℎ𝑟

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**Write each ratio as a unit rate. 2. $60 for 12 months **

5 Minute Check Write each ratio as a unit rate. 2. $60 for 12 months

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**Write each ratio as a unit rate. 2. $60 for 12 months **

5 Minute Check Write each ratio as a unit rate. 2. $60 for 12 months $60 12 𝑚𝑜𝑛𝑡ℎ𝑠 = $ 𝑥 1 𝑚𝑜𝑛𝑡ℎ 60 x 1 ÷ 12 = 5 $ 5 1 𝑚𝑜𝑛𝑡ℎ

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**Write each ratio as a unit rate. 3. 192 hot dogs in 24 minutes **

5 Minute Check Write each ratio as a unit rate hot dogs in 24 minutes

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**Write each ratio as a unit rate. 3. 192 hot dogs in 24 minutes **

5 Minute Check Write each ratio as a unit rate hot dogs in 24 minutes 192 ℎ𝑜𝑡𝑑𝑜𝑔𝑠 24 𝑚𝑖𝑛𝑢𝑡𝑒𝑠 = 𝑥 𝑚𝑖𝑛𝑢𝑡𝑒 1 𝑚𝑖𝑛𝑢𝑡𝑒 192 x 1 ÷ 24 = 8 8 ℎ𝑜𝑡𝑑𝑜𝑔𝑠 1 𝑚𝑖𝑛𝑢𝑡𝑒

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5 Minute Check Write each ratio as a unit rate. 4. After working for 24 hours, Zoe made $234. After working for 40 hours, Zoe made $390. Predict how much she would make after 10 hours of work.

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5 Minute Check Write each ratio as a unit rate. 4. After working for 24 hours, Zoe made $234. After working for 40 hours, Zoe made $390. Predict how much she would make after 10 hours of work. $ ℎ𝑜𝑢𝑟𝑠 = $ 𝑥 1 ℎ𝑟 234 x 1 ÷ 24 = $9.75 $9.75 x 10 = $97.50

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Flashcards

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Tuesday, April 8 Chapter 2 Review

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Chapter 2 Review 1. At Medina Middle School, 2% of the students ride bikes to school. If 950 students attend Medina Middle School, how many students ride a bike to school? A. 17 B. 18 C. 19 D. 20

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Chapter 2 Review 1. At Medina Middle School, 2% of the students ride bikes to school. If 950 students attend Medina Middle School, how many students ride a bike to school? 950 x 2% = 19 students Answer: C Calculator – 2, 2nd key, %, 950, =

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Chapter 2 Review 2. The formula C = (F – 32) can be used to convert a temperature from degrees Fahrenheit to degrees Celsius. Which of the following is closest in value to ? F. 5.9 G. 4 H. 1.8 I. 0.56

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Chapter 2 Review 2. The formula C = (F – 32) can be used to convert a temperature from degrees Fahrenheit to degrees Celsius. Which of the following is closest in value to ? F. 5.9 G. 4 H. 1.8 I. 0.56 = 0.55 Calculator- 5, A b/c, 9, 2nd key, F D, = Answer: I

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Chapter 2 Review 3. Sanford’s Shoe Store received a shipment of shoes for its newest location. The manager determined that 35% of the shoes were athletic shoes. What fraction of the shoes were athletic shoes? A. B. C. D.

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Chapter 2 Review 3. Sanford’s Shoe Store received a shipment of shoes for its newest location. The manager determined that 35% of the shoes were athletic shoes. What fraction of the shoes were athletic shoes? A. B. C. D. 35% = = Calculator- 35, 2nd key, %, 2nd key, F D, = Answer: A

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Chapter 2 Review 4. GRIDDED RESPONSE Mark got 18 out of 25 questions correct on his science test. What percent of the questions did he get correct?

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Chapter 2 Review 4. GRIDDED RESPONSE Mark got 18 out of 25 questions correct on his science test. What percent of the questions did he get correct? = 0.72 x 100 = 72% Calculator- 18, A b/c, 25, 2nd key, F D, =, x 100, =

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Chapter 2 Review 5. The graph shows the elements found in Earth’s crust. What fraction of Earth’s crust is silicon?

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Chapter 2 Review 5. The graph shows the elements found in Earth’s crust. What fraction of Earth’s crust is silicon? 28% = = Calculator- 28, 2nd key, %, 2nd key, F D, =

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Chapter 2 Review 6. The fastest fish in the world is the sailfish. If a sailfish could maintain its speed, as shown in the table, how many miles could the sailfish travel in 6 hours? A. 6 miles B. 68 miles C. 408 miles D. 476 miles

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Chapter 2 Review 6. The fastest fish in the world is the sailfish. If a sailfish could maintain its speed, as shown in the table, how many miles could the sailfish travel in 6 hours? A. 6 miles B. 68 miles C. 408 miles D. 476 miles 1 hr hrs 68 miles = ? miles 68 x 6 ÷ 1 = 408 miles Answer: C

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Chapter 2 Review 7.GRIDDED RESPONSE Carlita planted 4 flowers in 9 minutes. About how many flowers can Carlita plant in 36 minutes?

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Chapter 2 Review 7.GRIDDED RESPONSE Carlita planted 4 flowers in 9 minutes. About how many flowers can Carlita plant in 36 minutes? 4 flowers ? flowers 9 minutes = 36 minutes 4 x 36 ÷ 9 = 16 flowers

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Chapter 2 Review 8. What is the ratio of people to buses? F. 1:25 G. 25:1 H. 6:150 I. 156

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Chapter 2 Review 8. What is the ratio of people to buses? F. 1:25 G. 25:1 H. 6:150 I. 156 6 buses bus 150 people = 25 people 1:25 Answer: F

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Chapter 2 Review 8. What is the ratio of people to buses? F. 1:25 G. 25:1 H. 6:150 I. 156 150 people people 6 buses = bus 25:1 Answer: G

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Chapter 2 Review 9. A school population was predicted to increase by 50 students a year for the next 10 years. If the current population is 700 students, what will be the enrollment after 10 years? F. 50 students H. 1,200 students G. 500 students I. 7,000 students

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Chapter 2 Review 9. A school population was predicted to increase by 50 students a year for the next 10 years. If the current population is 700 students, what will be the enrollment after 10 years? 700 students + 50 a year x 10 years = 1200 students Answer: H

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Chapter 2 Review 10. Pam is painting a total of 45 square feet in her bedroom. If she has painted 60% so far, how many square feet of the bedroom does Pam still need to paint? F. 30 G. 27 H. 18 I. 10

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Chapter 2 Review 10. Pam is painting a total of 45 square feet in her bedroom. If she has painted 60% so far, how many square feet of the bedroom does Pam still need to paint? F. 30 G. 27 H. 18 I. 10 45 x 60% = 27 sf Answer: G Calculator – 60, 2nd key, %, 45, =

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Chapter 2 Review 10. Pam is painting a total of 45 square feet in her bedroom. If she has painted 60% so far, how many square feet of the bedroom does Pam still need to paint? F. 30 G. 27 H. 18 I. 10 45 x 40% = 18 sf Answer: H Calculator – 40, 2nd key, %, 45, =

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Chapter 2 Review 11. A class of 26 students ordered the items shown in the table. If the class agreed to split the cost evenly, about how much will each student pay? A. $3.00 B. $2.50 C. $1.50 D. $1.00

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Chapter 2 Review 11. A class of 26 students ordered the items shown in the table. If the class agreed to split the cost evenly, about how much will each student pay? A. $3.00 B. $2.50 C. $1.50 D. $1.00 27 x $ x $ x $1.50 = $ $ $1.50 = $45.20 $ $1.74 26 students = 1 student Answer: C

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Chapter 2 Review 12. SHORT RESPONSE Refer to the table below. If the Williams family has a monthly income of $3,000, how much do they spend on clothing and entertainment?

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Chapter 2 Review 12. SHORT RESPONSE Refer to the table below. If the Williams family has a monthly income of $3,000, how much do they spend on clothing and entertainment? 12% of $3,000 = $360 12, 2nd key, %, 3000, =

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Chapter 2 Review 13. EXTENDED RESPONSE Copy the models below. Both models have the same area. Part A Shade 0.25 of Model A. Part B Shade 1 3 of Model B. Part C Which model has the greater fraction of shaded area? Explain your answer.

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Chapter 2 Review 13. EXTENDED RESPONSE Copy the models below. Both models have the same area. Model A Model B Part C Which model has the greater fraction of shaded area? Explain your answer.

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Chapter 2 Review 13. EXTENDED RESPONSE Copy the models below. Both models have the same area. Model B has a greater fraction shaded. = .33 > .25

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Chapter 2 Review Agenda Notes Homework– Homework Practice OAA – CH2a Due Wednesday, April 9 Final Exam Friday, April 25

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