Proportional and Nonproportional Relationships

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

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CCSS.7.RP.A.2A

Front

What is a nonproportional relationship?

Back

A nonproportional relationship is a relationship between two quantities where the ratio is not constant, often involving a fixed amount added or subtracted.

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CCSS.7.RP.A.2D

Front

How do you determine the cost of multiple items in a proportional relationship?

Back

Multiply the cost of one item by the number of items to find the total cost.

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CCSS.7.RP.A.2C

Front

If a pizza costs $8, how much do 5 pizzas cost?

Back

5 pizzas cost $40 (5 x $8 = $40).

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CCSS.4.OA.A.1

Front

What is the hourly wage of Andrew for mowing lawns?

Back

Andrew earns $18 per hour.

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CCSS.6.RP.A.3B

Front

How do you calculate total earnings based on hourly wage?

Back

Multiply the hourly wage by the number of hours worked.

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CCSS.7.EE.B.3

Front

If Andrew works 4 hours, how much does he earn?

Back

Andrew earns $72 (4 hours x $18/hour = $72).

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CCSS.5.MD.B.2

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What is the cost structure of Uptown Tickets for baseball game tickets?

Back

Uptown Tickets charges $7 per ticket plus a $3 processing fee per order.

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CCSS.7.RP.A.3

Front

How do you calculate the total cost for multiple tickets with a processing fee?

Back

Multiply the number of tickets by the ticket price, then add the processing fee.

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CCSS.7.EE.B.3

Front

If 4 baseball game tickets are purchased, what is the total cost?

Back

The total cost for 4 tickets is $31 (4 x $7 + $3 = $31).

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CCSS.7.EE.B.3