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