I Have a Piece of Cardboard That Is Twice as Long

question 85

Multiple Choice

I have a piece of cardboard that is twice as long as it is wide. If I cut a 1-inch by 1-inch square from each corner and fold up the resulting flaps, I get a box with a volume of 40 cubic inches. What are the dimensions of the cardboard?

• A) 4 inches by 8 inches
• B) 3 inches by 6 inches
• C) 6 inches by 12 inches
• D) 8 inches by 16 inches
• E) 9 inches by 18 inches

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Definitions:

Triethylamine

A strong, organic base, commonly used as a reagent and catalyst in organic synthesis.

Nitrogen Atom

A chemical element with atomic number 7, essential to life on Earth, and a common element in organic compounds.

CNC Bond Angle

The angle formed between two carbon atoms and a nitrogen atom connected in a molecule.

Hybridization

The concept in molecular chemistry and physics that describes the mixing of atomic orbitals to form new hybrid orbitals suitable for the pairing of electrons to form chemical bonds.