D=rt, Unit Rate, Constant of Proportionality

What is the Constant of Proportionality?

(a)  

• k=46
• k=92
• k=0.2
• not proportional

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7.4B

7.4C

7.4A

What is the constant of proportionality? (a)  

• $9
• $3
• $4
• $2

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7.4B

Which statement below accurately represents the graph?

• $100 is earned for each hour worked
• $200 earned for every 2 hours worked
  is the unit rate
• $500 is earned for every 8 hours worked
• $300 is earned after working 4 hours

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7.4B

Is the given table a proportional relationship? If so, what is the constant of proportionality? (a)  

• Yes; 1/3
• Yes; 3
• Yes; 75
• No

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7.4B

7.4C

Sargento cheese slices are $2.48 for 10 slices, and Velveeta Cheese slices are $3.18 for 12 slices
What is the unit price for Sargento?
(a)   ​ What is the unit price of Velveeta? ​ (b)   Which is the better deal?​ (c)  

• $0.25
• $0.27
• Sargento
• Velveeta
• 0.265
• 0.248
• $0.54

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7.4B

Doritos $4.39 for 11 oz. or Cheetos $2.24 for 9 oz. What is the unit price for Doritos? ​ (a)   What is the unit price for Cheetos?​ (b)   Which is the better deal?
(c)  

• Cheetos
• Doritos
• $0.248
• $0.399
• $1.24
• $0.40
• $0.25

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7.4B

Movie ticket sales are as follows:
Adult: 20 tickets for $250
Child: 15 tickets for $71.25
Senior: 5 tickets for $37.50
How much does one (1) CHILD ticket cost?

• $4.75
• $7.12
• $56.25
• $12.50

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7.4B

Stapleton runs from 4:50 pm until 5:20pm at an average speed of 7 kph. How far does he run?

• 4.5km

• 2.5km

• 3.5km

• 14 km

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7.4A

Julie and her friend, Michelle, took turns driving during their road trip. Julie drove for 2 hours at a constant speed of 55 miles per hour. Michelle drove for 3 hours at a constant speed of 60 miles per hour. How many miles did they drive altogether?

• 280 miles

• 290 miles

• 305 miles

• 375 miles

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7.4A

Derfla walked 4.5 miles in 2.5 hours at a constant rate. What was her speed?

• 1.8 miles/hr

• 0.8 miles/hr

• 1.6 miles/hr

• 1.5 miles/hr

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7.4A