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GED Math Test #9 3 Flashcards

6 cards from real GED practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 GED Math Test #9 3 flashcards as text

  1. A map has a scale of 1 inch = 50 miles. Two cities are 3.5 inches apart on the map. What is the actual distance?

    Answer: 175 miles

    Distance = 3.5 × 50 = 175 miles. Use the scale as a conversion factor: 3.5 in × (50 miles/1 in) = 175 miles.

  2. What is 2⁻³ equal to?

    Answer: 1/8

    A negative exponent means take the reciprocal: 2⁻³ = 1/2³ = 1/8. Negative exponents indicate the base is in the denominator.

  3. If the length of a square is doubled, how does its area change?

    Answer: The area becomes 4 times larger

    If original side = s, area = s². If side = 2s, new area = (2s)² = 4s². The area increases by a factor of 4 (not 2) when each side doubles.

  4. The mode of a data set is the value that:

    Answer: Appears most frequently

    The mode is the most frequently occurring value in a data set. A data set can have one mode, multiple modes, or no mode at all.

  5. A plumber charges $75 for the first hour and $50 for each additional hour. If a job takes 4 hours, what is the total charge?

    Answer: $225

    First hour: $75. Remaining 3 hours: 3 × $50 = $150. Total = $75 + $150 = $225.

  6. Simplify: √48

    Answer: 4√3

    √48 = √(16 × 3) = √16 × √3 = 4√3. Factor out the largest perfect square from under the radical.