QUESTIONS AND ANSWERS | 2025 UPDATE | 100% CORRECT.
What is an equation? - (answers)A math statement showing two expressions are equal, connected by an
equal sign (=).
What is an expression? - (answers)A math phrase without an equal sign.
Example of an equation? - (answers)8 + 3 = 11.
Example of an expression? - (answers)8 + 3.
How do you solve for an unknown in an equation? - (answers)Apply the same operation to both sides
until the unknown is isolated.
What is a variable? - (answers)A symbol (like x) that represents an unknown value.
What is a constant? - (answers)A fixed value that does not change.
What is a coefficient? - (answers)A number multiplied by a variable (in 5x, 5 is the coefficient).
How do you multiply fractions? - (answers)Multiply numerators together and denominators together.
How do you divide fractions? - (answers)Multiply by the reciprocal of the divisor.
How do you add/subtract fractions? - (answers)Rewrite with a common denominator, then add/subtract
numerators.
, What is a reciprocal? - (answers)The flipped version of a fraction (e.g., 3/4 → 4/3).
What does percent mean? - (answers)Per hundred.
How do you convert a decimal to a percent? - (answers)Multiply by 100. (0.25 → 25%).
How do you convert a percent to a decimal? - (answers)Divide by 100. (75% → 0.75).
How do you find 10% of a number quickly? - (answers)Move the decimal one place to the left.
Example: What is 25% of 200? - (answers)200 × 0.25 = 50.
What is a ratio? - (answers)A comparison of two numbers (e.g., 2:3).
What is a rate? - (answers)A ratio with different units (e.g., miles/hour).
What is a unit rate? - (answers)A rate with denominator of 1 (e.g., $2 per slice).
What is a proportion? - (answers)An equation showing two ratios are equal.
How do you solve a proportion? - (answers)Cross multiply and divide.
Example: 3/4 = x/12. Solve for x. - (answers)x = 9.
How do you find the perimeter of a rectangle? - (answers)2 × length + 2 × width.