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Mathematics Flashcards

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

Read the first 7 Mathematics flashcards as text

  1. A store marks up the cost of an item by 40%. If the cost is $35, what is the selling price?

    Answer: $49.00

    40% of $35 is $14, and $35 + $14 = $49.00.

  2. Which of the following is equivalent to 3x² − 12x?

    Answer: 3x(x − 4)

    Factor out 3x from each term: 3x² − 12x = 3x(x − 4).

  3. If the ratio of boys to girls in a class is 3:5 and there are 24 boys, how many students are in the class total?

    Answer: 64

    24 boys ÷ 3 = 8 per part; 8 parts × (3+5) = 64 students total.

  4. What is the slope of the line passing through (2, 5) and (6, 13)?

    Answer: 2

    Slope = (13 − 5) ÷ (6 − 2) = 8 ÷ 4 = 2.

  5. A triangle has angles measuring 45° and 75°. What is the measure of the third angle?

    Answer: 60°

    The angles of a triangle sum to 180°, so 180 − 45 − 75 = 60°.

  6. Simplify: (2³ × 2⁴) ÷ 2²

    Answer: 2⁵

    2³ × 2⁴ = 2⁷, then 2⁷ ÷ 2² = 2⁵.

  7. A rectangle has a perimeter of 54 cm and a width of 9 cm. What is its area?

    Answer: 162 cm²

    Length = (54 ÷ 2) − 9 = 18 cm; Area = 18 × 9 = 162 cm².