Freezer A has interior dimensions 2 ft×2 ft×4 ft and sells for $399.99. Freezer B has interior dimensions 2.5 ft×2.5 ft×3 ft and sells for $499.99. Which freezer is a better buy in terms of dollars per cubic foot? Use pencil and paper. Show your work and explain your reasoning.

Freezer A is a better buy in terms of dollars per cubic foot.

Step-by-step explanation:

Freezer A: V = 2*2*4 = 16 ft^3

P/V= 400/16 = 25 $/ft^3

Freezer B: V = 2.5*2.5*3 = 18.75 ft^3

P/V= 500/18.75 = 26.6 $/ft^3

--> 25 < 26.6 that mean Freezer A is cheaper per cubic foot.

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6