Margie and her sister wanted to purchase a bag of popcorn for movie night. They compared the prices and sizes of four bags of popcorn.

Question

Pop-A-Lot Pop Kornz Pop-arazzi Kernels Popcorn
Size 7 ounces 8 ounces 17 ounces 3 ounces
Cost $3.50 $4.25 $7.49 $2.09

Part A: Calculate the corresponding unit rate for each package. (2 points)

Part B: Interpret what the unit rates found in Part A represent. (1 point)

Part C: Choose which package is the best buy. (1 point)

Answer 1

Part A:
Pop-A-Lot Pop Kornz: $3.50/7 ounces = $0.50/ounce
Pop-arazzi Kernels Popcorn: $4.25/8 ounces = $0.53/ounce
Kernels Popcorn: $7.49/17 ounces = $0.44/ounce
Pop-arazzi Kernels Popcorn: $2.09/3 ounces = $0.70/ounce

Part B: The unit rates represent the cost of each ounce of popcorn.

Part C: The Pop-arazzi Kernels Popcorn is the best buy at $0.44/ounce.

Answer 2

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