D771 WGU Quantitative Literacy
What is an equation? - answer A math statement showing two expressions are equal,
connected by an equal sign (=).
What is an expression? - answerA math phrase without an equal sign.
Example of an equation? - answer8 + 3 = 11.
Example of an expression? - answer8 + 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? - answerA number multiplied by a variable (in 5x, 5 is the
coefficient).
How do you multiply fractions? - answerMultiply numerators together and denominators
together.
How do you divide fractions? - answerMultiply by the reciprocal of the divisor.
How do you add/subtract fractions? - answerRewrite with a common denominator, then
add/subtract numerators.
What is a reciprocal? - answerThe flipped version of a fraction (e.g., 3/4 → 4/3).
What does percent mean? - answerPer hundred.
How do you convert a decimal to a percent? - answerMultiply by 100. (0.25 → 25%).
How do you convert a percent to a decimal? - answerDivide by 100. (75% → 0.75).
How do you find 10% of a number quickly? - answerMove the decimal one place to the
left.
Example: What is 25% of 200? - answer200 × 0.25 = 50.
What is a ratio? - answerA comparison of two numbers (e.g., 2:3).
, What is a rate? - answerA ratio with different units (e.g., miles/hour).
What is a unit rate? - answerA rate with denominator of 1 (e.g., $2 per slice).
What is a proportion? - answerAn equation showing two ratios are equal.
How do you solve a proportion? - answerCross multiply and divide.
Example: 3/4 = x/12. Solve for x. - answerx = 9.
How do you find the perimeter of a rectangle? - answer2 × length + 2 × width.
Example: Rectangle 10 ft by 14 ft perimeter? - answer48 ft.
What is the circumference of a circle? - answerDistance around a circle.
Formula for circumference using diameter? - answerC = π × diameter.
Formula for circumference using radius? - answerC = 2πr.
Approximate value of π? - answer3.14.
What does ≈ mean? - answerAbout equal to.
What is a conversion factor? - answerA ratio that compares two equivalent values in
different units.
How do you convert 150 minutes into hours? - answer150 × (1 hr / 60 min) = 2.5 hours.
How do you convert inches to feet? - answerDivide by 12.
What is a function? - answerA relation where each input has exactly one output.
What is function notation? - answery = f(x).
What is a linear function? - answerA function that forms a straight line, written as y = mx
+ b.
In y = mx + b, what does m represent? - answerThe slope (rate of change).
In y = mx + b, what does b represent? - answerThe y-intercept (starting value).
Example: $2000 setup fee + $30 per person. Function? - answery = 30x + 2000.
What is linear growth? - answerIncrease by the same fixed amount each step.
What is an equation? - answer A math statement showing two expressions are equal,
connected by an equal sign (=).
What is an expression? - answerA math phrase without an equal sign.
Example of an equation? - answer8 + 3 = 11.
Example of an expression? - answer8 + 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? - answerA number multiplied by a variable (in 5x, 5 is the
coefficient).
How do you multiply fractions? - answerMultiply numerators together and denominators
together.
How do you divide fractions? - answerMultiply by the reciprocal of the divisor.
How do you add/subtract fractions? - answerRewrite with a common denominator, then
add/subtract numerators.
What is a reciprocal? - answerThe flipped version of a fraction (e.g., 3/4 → 4/3).
What does percent mean? - answerPer hundred.
How do you convert a decimal to a percent? - answerMultiply by 100. (0.25 → 25%).
How do you convert a percent to a decimal? - answerDivide by 100. (75% → 0.75).
How do you find 10% of a number quickly? - answerMove the decimal one place to the
left.
Example: What is 25% of 200? - answer200 × 0.25 = 50.
What is a ratio? - answerA comparison of two numbers (e.g., 2:3).
, What is a rate? - answerA ratio with different units (e.g., miles/hour).
What is a unit rate? - answerA rate with denominator of 1 (e.g., $2 per slice).
What is a proportion? - answerAn equation showing two ratios are equal.
How do you solve a proportion? - answerCross multiply and divide.
Example: 3/4 = x/12. Solve for x. - answerx = 9.
How do you find the perimeter of a rectangle? - answer2 × length + 2 × width.
Example: Rectangle 10 ft by 14 ft perimeter? - answer48 ft.
What is the circumference of a circle? - answerDistance around a circle.
Formula for circumference using diameter? - answerC = π × diameter.
Formula for circumference using radius? - answerC = 2πr.
Approximate value of π? - answer3.14.
What does ≈ mean? - answerAbout equal to.
What is a conversion factor? - answerA ratio that compares two equivalent values in
different units.
How do you convert 150 minutes into hours? - answer150 × (1 hr / 60 min) = 2.5 hours.
How do you convert inches to feet? - answerDivide by 12.
What is a function? - answerA relation where each input has exactly one output.
What is function notation? - answery = f(x).
What is a linear function? - answerA function that forms a straight line, written as y = mx
+ b.
In y = mx + b, what does m represent? - answerThe slope (rate of change).
In y = mx + b, what does b represent? - answerThe y-intercept (starting value).
Example: $2000 setup fee + $30 per person. Function? - answery = 30x + 2000.
What is linear growth? - answerIncrease by the same fixed amount each step.
