WGU D771 COMPREHENSIVE TEST BANK
COMPLETE QUESTIONS AND ANSWERS
PRACTICE SOLUTION VERIFIED
◉ What is an expression? Answer: A math phrase without an
equal sign.
◉ Example of an equation? Answer: 8 + 3 = 11.
◉ Example of an expression? Answer: 8 + 3.
◉ How do you solve for an unknown in an equation? Answer:
Apply the same operation to both sides until the unknown is isolated.
◉ What is a variable? Answer: A symbol (like x) that represents
an unknown value.
◉ What is a constant? Answer: A fixed value that does not
change.
◉ What is a coefficient? Answer: A number multiplied by a
variable (in 5x, 5 is the coefficient).
, ◉ How do you multiply fractions? Answer: Multiply numerators
together and denominators together.
◉ How do you divide fractions? Answer: Multiply by the
reciprocal of the divisor.
◉ How do you add/subtract fractions? Answer: Rewrite with a
common denominator, then add/subtract numerators.
◉ What is a reciprocal? Answer: The flipped version of a
fraction (e.g., 3/4 → 4/3).
◉ What does percent mean? Answer: Per hundred.
◉ How do you convert a decimal to a percent? Answer:
Multiply by 100. (0.25 → 25%).
◉ How do you convert a percent to a decimal? Answer: Divide
by 100. (75% → 0.75).
◉ How do you find 10% of a number quickly? Answer: Move
the decimal one place to the left.
◉ Example: What is 25% of 200? Answer: 200 × 0.25 = 50.
COMPLETE QUESTIONS AND ANSWERS
PRACTICE SOLUTION VERIFIED
◉ What is an expression? Answer: A math phrase without an
equal sign.
◉ Example of an equation? Answer: 8 + 3 = 11.
◉ Example of an expression? Answer: 8 + 3.
◉ How do you solve for an unknown in an equation? Answer:
Apply the same operation to both sides until the unknown is isolated.
◉ What is a variable? Answer: A symbol (like x) that represents
an unknown value.
◉ What is a constant? Answer: A fixed value that does not
change.
◉ What is a coefficient? Answer: A number multiplied by a
variable (in 5x, 5 is the coefficient).
, ◉ How do you multiply fractions? Answer: Multiply numerators
together and denominators together.
◉ How do you divide fractions? Answer: Multiply by the
reciprocal of the divisor.
◉ How do you add/subtract fractions? Answer: Rewrite with a
common denominator, then add/subtract numerators.
◉ What is a reciprocal? Answer: The flipped version of a
fraction (e.g., 3/4 → 4/3).
◉ What does percent mean? Answer: Per hundred.
◉ How do you convert a decimal to a percent? Answer:
Multiply by 100. (0.25 → 25%).
◉ How do you convert a percent to a decimal? Answer: Divide
by 100. (75% → 0.75).
◉ How do you find 10% of a number quickly? Answer: Move
the decimal one place to the left.
◉ Example: What is 25% of 200? Answer: 200 × 0.25 = 50.
